updated-packages

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/BaseWriter.php

@@ -0,0 +1,131 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+abstract class BaseWriter implements IWriter
+{
+    /**
+     * Write charts that are defined in the workbook?
+     * Identifies whether the Writer should write definitions for any charts that exist in the PhpSpreadsheet object;.
+     *
+     * @var bool
+     */
+    protected $includeCharts = false;
+
+    /**
+     * Pre-calculate formulas
+     * Forces PhpSpreadsheet to recalculate all formulae in a workbook when saving, so that the pre-calculated values are
+     * immediately available to MS Excel or other office spreadsheet viewer when opening the file.
+     *
+     * @var bool
+     */
+    protected $preCalculateFormulas = true;
+
+    /**
+     * Use disk caching where possible?
+     *
+     * @var bool
+     */
+    private $useDiskCaching = false;
+
+    /**
+     * Disk caching directory.
+     *
+     * @var string
+     */
+    private $diskCachingDirectory = './';
+
+    /**
+     * @var resource
+     */
+    protected $fileHandle;
+
+    /**
+     * @var bool
+     */
+    private $shouldCloseFile;
+
+    public function getIncludeCharts()
+    {
+        return $this->includeCharts;
+    }
+
+    public function setIncludeCharts($pValue)
+    {
+        $this->includeCharts = (bool) $pValue;
+
+        return $this;
+    }
+
+    public function getPreCalculateFormulas()
+    {
+        return $this->preCalculateFormulas;
+    }
+
+    public function setPreCalculateFormulas($pValue)
+    {
+        $this->preCalculateFormulas = (bool) $pValue;
+
+        return $this;
+    }
+
+    public function getUseDiskCaching()
+    {
+        return $this->useDiskCaching;
+    }
+
+    public function setUseDiskCaching($pValue, $pDirectory = null)
+    {
+        $this->useDiskCaching = $pValue;
+
+        if ($pDirectory !== null) {
+            if (is_dir($pDirectory)) {
+                $this->diskCachingDirectory = $pDirectory;
+            } else {
+                throw new Exception("Directory does not exist: $pDirectory");
+            }
+        }
+
+        return $this;
+    }
+
+    public function getDiskCachingDirectory()
+    {
+        return $this->diskCachingDirectory;
+    }
+
+    /**
+     * Open file handle.
+     *
+     * @param resource|string $filename
+     */
+    public function openFileHandle($filename): void
+    {
+        if (is_resource($filename)) {
+            $this->fileHandle = $filename;
+            $this->shouldCloseFile = false;
+
+            return;
+        }
+
+        $fileHandle = $filename ? fopen($filename, 'wb+') : false;
+        if ($fileHandle === false) {
+            throw new Exception('Could not open file "' . $filename . '" for writing.');
+        }
+
+        $this->fileHandle = $fileHandle;
+        $this->shouldCloseFile = true;
+    }
+
+    /**
+     * Close file handle only if we opened it ourselves.
+     */
+    protected function maybeCloseFileHandle(): void
+    {
+        if ($this->shouldCloseFile) {
+            if (!fclose($this->fileHandle)) {
+                throw new Exception('Could not close file after writing.');
+            }
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Csv.php

@@ -0,0 +1,352 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Csv extends BaseWriter
+{
+    /**
+     * PhpSpreadsheet object.
+     *
+     * @var Spreadsheet
+     */
+    private $spreadsheet;
+
+    /**
+     * Delimiter.
+     *
+     * @var string
+     */
+    private $delimiter = ',';
+
+    /**
+     * Enclosure.
+     *
+     * @var string
+     */
+    private $enclosure = '"';
+
+    /**
+     * Line ending.
+     *
+     * @var string
+     */
+    private $lineEnding = PHP_EOL;
+
+    /**
+     * Sheet index to write.
+     *
+     * @var int
+     */
+    private $sheetIndex = 0;
+
+    /**
+     * Whether to write a BOM (for UTF8).
+     *
+     * @var bool
+     */
+    private $useBOM = false;
+
+    /**
+     * Whether to write a Separator line as the first line of the file
+     *     sep=x.
+     *
+     * @var bool
+     */
+    private $includeSeparatorLine = false;
+
+    /**
+     * Whether to write a fully Excel compatible CSV file.
+     *
+     * @var bool
+     */
+    private $excelCompatibility = false;
+
+    /**
+     * Create a new CSV.
+     *
+     * @param Spreadsheet $spreadsheet Spreadsheet object
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        $this->spreadsheet = $spreadsheet;
+    }
+
+    /**
+     * Save PhpSpreadsheet to file.
+     *
+     * @param resource|string $pFilename
+     */
+    public function save($pFilename): void
+    {
+        // Fetch sheet
+        $sheet = $this->spreadsheet->getSheet($this->sheetIndex);
+
+        $saveDebugLog = Calculation::getInstance($this->spreadsheet)->getDebugLog()->getWriteDebugLog();
+        Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog(false);
+        $saveArrayReturnType = Calculation::getArrayReturnType();
+        Calculation::setArrayReturnType(Calculation::RETURN_ARRAY_AS_VALUE);
+
+        // Open file
+        $this->openFileHandle($pFilename);
+
+        if ($this->excelCompatibility) {
+            $this->setUseBOM(true); //  Enforce UTF-8 BOM Header
+            $this->setIncludeSeparatorLine(true); //  Set separator line
+            $this->setEnclosure('"'); //  Set enclosure to "
+            $this->setDelimiter(';'); //  Set delimiter to a semi-colon
+            $this->setLineEnding("\r\n");
+        }
+
+        if ($this->useBOM) {
+            // Write the UTF-8 BOM code if required
+            fwrite($this->fileHandle, "\xEF\xBB\xBF");
+        }
+
+        if ($this->includeSeparatorLine) {
+            // Write the separator line if required
+            fwrite($this->fileHandle, 'sep=' . $this->getDelimiter() . $this->lineEnding);
+        }
+
+        //    Identify the range that we need to extract from the worksheet
+        $maxCol = $sheet->getHighestDataColumn();
+        $maxRow = $sheet->getHighestDataRow();
+
+        // Write rows to file
+        for ($row = 1; $row <= $maxRow; ++$row) {
+            // Convert the row to an array...
+            $cellsArray = $sheet->rangeToArray('A' . $row . ':' . $maxCol . $row, '', $this->preCalculateFormulas);
+            // ... and write to the file
+            $this->writeLine($this->fileHandle, $cellsArray[0]);
+        }
+
+        $this->maybeCloseFileHandle();
+        Calculation::setArrayReturnType($saveArrayReturnType);
+        Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);
+    }
+
+    /**
+     * Get delimiter.
+     *
+     * @return string
+     */
+    public function getDelimiter()
+    {
+        return $this->delimiter;
+    }
+
+    /**
+     * Set delimiter.
+     *
+     * @param string $pValue Delimiter, defaults to ','
+     *
+     * @return $this
+     */
+    public function setDelimiter($pValue)
+    {
+        $this->delimiter = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get enclosure.
+     *
+     * @return string
+     */
+    public function getEnclosure()
+    {
+        return $this->enclosure;
+    }
+
+    /**
+     * Set enclosure.
+     *
+     * @param string $pValue Enclosure, defaults to "
+     *
+     * @return $this
+     */
+    public function setEnclosure($pValue = '"')
+    {
+        $this->enclosure = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get line ending.
+     *
+     * @return string
+     */
+    public function getLineEnding()
+    {
+        return $this->lineEnding;
+    }
+
+    /**
+     * Set line ending.
+     *
+     * @param string $pValue Line ending, defaults to OS line ending (PHP_EOL)
+     *
+     * @return $this
+     */
+    public function setLineEnding($pValue)
+    {
+        $this->lineEnding = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get whether BOM should be used.
+     *
+     * @return bool
+     */
+    public function getUseBOM()
+    {
+        return $this->useBOM;
+    }
+
+    /**
+     * Set whether BOM should be used.
+     *
+     * @param bool $pValue Use UTF-8 byte-order mark? Defaults to false
+     *
+     * @return $this
+     */
+    public function setUseBOM($pValue)
+    {
+        $this->useBOM = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get whether a separator line should be included.
+     *
+     * @return bool
+     */
+    public function getIncludeSeparatorLine()
+    {
+        return $this->includeSeparatorLine;
+    }
+
+    /**
+     * Set whether a separator line should be included as the first line of the file.
+     *
+     * @param bool $pValue Use separator line? Defaults to false
+     *
+     * @return $this
+     */
+    public function setIncludeSeparatorLine($pValue)
+    {
+        $this->includeSeparatorLine = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get whether the file should be saved with full Excel Compatibility.
+     *
+     * @return bool
+     */
+    public function getExcelCompatibility()
+    {
+        return $this->excelCompatibility;
+    }
+
+    /**
+     * Set whether the file should be saved with full Excel Compatibility.
+     *
+     * @param bool $pValue Set the file to be written as a fully Excel compatible csv file
+     *                                Note that this overrides other settings such as useBOM, enclosure and delimiter
+     *
+     * @return $this
+     */
+    public function setExcelCompatibility($pValue)
+    {
+        $this->excelCompatibility = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get sheet index.
+     *
+     * @return int
+     */
+    public function getSheetIndex()
+    {
+        return $this->sheetIndex;
+    }
+
+    /**
+     * Set sheet index.
+     *
+     * @param int $pValue Sheet index
+     *
+     * @return $this
+     */
+    public function setSheetIndex($pValue)
+    {
+        $this->sheetIndex = $pValue;
+
+        return $this;
+    }
+
+    private $enclosureRequired = true;
+
+    public function setEnclosureRequired(bool $value): self
+    {
+        $this->enclosureRequired = $value;
+
+        return $this;
+    }
+
+    public function getEnclosureRequired(): bool
+    {
+        return $this->enclosureRequired;
+    }
+
+    /**
+     * Write line to CSV file.
+     *
+     * @param resource $pFileHandle PHP filehandle
+     * @param array $pValues Array containing values in a row
+     */
+    private function writeLine($pFileHandle, array $pValues): void
+    {
+        // No leading delimiter
+        $delimiter = '';
+
+        // Build the line
+        $line = '';
+
+        foreach ($pValues as $element) {
+            // Add delimiter
+            $line .= $delimiter;
+            $delimiter = $this->delimiter;
+            // Escape enclosures
+            $enclosure = $this->enclosure;
+            if ($enclosure) {
+                // If enclosure is not required, use enclosure only if
+                // element contains newline, delimiter, or enclosure.
+                if (!$this->enclosureRequired && strpbrk($element, "$delimiter$enclosure\n") === false) {
+                    $enclosure = '';
+                } else {
+                    $element = str_replace($enclosure, $enclosure . $enclosure, $element);
+                }
+            }
+            // Add enclosed string
+            $line .= $enclosure . $element . $enclosure;
+        }
+
+        // Add line ending
+        $line .= $this->lineEnding;
+
+        // Write to file
+        fwrite($pFileHandle, $line);
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Exception.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;
+
+class Exception extends PhpSpreadsheetException
+{
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/IWriter.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+interface IWriter
+{
+    /**
+     * IWriter constructor.
+     */
+    public function __construct(Spreadsheet $spreadsheet);
+
+    /**
+     * Write charts in workbook?
+     *        If this is true, then the Writer will write definitions for any charts that exist in the PhpSpreadsheet object.
+     *        If false (the default) it will ignore any charts defined in the PhpSpreadsheet object.
+     *
+     * @return bool
+     */
+    public function getIncludeCharts();
+
+    /**
+     * Set write charts in workbook
+     *        Set to true, to advise the Writer to include any charts that exist in the PhpSpreadsheet object.
+     *        Set to false (the default) to ignore charts.
+     *
+     * @param bool $pValue
+     *
+     * @return IWriter
+     */
+    public function setIncludeCharts($pValue);
+
+    /**
+     * Get Pre-Calculate Formulas flag
+     *     If this is true (the default), then the writer will recalculate all formulae in a workbook when saving,
+     *        so that the pre-calculated values are immediately available to MS Excel or other office spreadsheet
+     *        viewer when opening the file
+     *     If false, then formulae are not calculated on save. This is faster for saving in PhpSpreadsheet, but slower
+     *        when opening the resulting file in MS Excel, because Excel has to recalculate the formulae itself.
+     *
+     * @return bool
+     */
+    public function getPreCalculateFormulas();
+
+    /**
+     * Set Pre-Calculate Formulas
+     *        Set to true (the default) to advise the Writer to calculate all formulae on save
+     *        Set to false to prevent precalculation of formulae on save.
+     *
+     * @param bool $pValue Pre-Calculate Formulas?
+     *
+     * @return IWriter
+     */
+    public function setPreCalculateFormulas($pValue);
+
+    /**
+     * Save PhpSpreadsheet to file.
+     *
+     * @param resource|string $pFilename Name of the file to save
+     */
+    public function save($pFilename);
+
+    /**
+     * Get use disk caching where possible?
+     *
+     * @return bool
+     */
+    public function getUseDiskCaching();
+
+    /**
+     * Set use disk caching where possible?
+     *
+     * @param bool $pValue
+     * @param string $pDirectory Disk caching directory
+     *
+     * @return IWriter
+     */
+    public function setUseDiskCaching($pValue, $pDirectory = null);
+
+    /**
+     * Get disk caching directory.
+     *
+     * @return string
+     */
+    public function getDiskCachingDirectory();
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods.php

@@ -0,0 +1,156 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Shared\File;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Content;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Meta;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\MetaInf;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Mimetype;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Settings;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Styles;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Thumbnails;
+use ZipStream\Exception\OverflowException;
+use ZipStream\Option\Archive;
+use ZipStream\ZipStream;
+
+class Ods extends BaseWriter
+{
+    /**
+     * Private writer parts.
+     *
+     * @var Ods\WriterPart[]
+     */
+    private $writerParts = [];
+
+    /**
+     * Private PhpSpreadsheet.
+     *
+     * @var Spreadsheet
+     */
+    private $spreadSheet;
+
+    /**
+     * Create a new Ods.
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        $this->setSpreadsheet($spreadsheet);
+
+        $writerPartsArray = [
+            'content' => Content::class,
+            'meta' => Meta::class,
+            'meta_inf' => MetaInf::class,
+            'mimetype' => Mimetype::class,
+            'settings' => Settings::class,
+            'styles' => Styles::class,
+            'thumbnails' => Thumbnails::class,
+        ];
+
+        foreach ($writerPartsArray as $writer => $class) {
+            $this->writerParts[$writer] = new $class($this);
+        }
+    }
+
+    /**
+     * Get writer part.
+     *
+     * @param string $pPartName Writer part name
+     *
+     * @return null|Ods\WriterPart
+     */
+    public function getWriterPart($pPartName)
+    {
+        if ($pPartName != '' && isset($this->writerParts[strtolower($pPartName)])) {
+            return $this->writerParts[strtolower($pPartName)];
+        }
+
+        return null;
+    }
+
+    /**
+     * Save PhpSpreadsheet to file.
+     *
+     * @param resource|string $pFilename
+     */
+    public function save($pFilename): void
+    {
+        if (!$this->spreadSheet) {
+            throw new WriterException('PhpSpreadsheet object unassigned.');
+        }
+
+        // garbage collect
+        $this->spreadSheet->garbageCollect();
+
+        $this->openFileHandle($pFilename);
+
+        $zip = $this->createZip();
+
+        $zip->addFile('META-INF/manifest.xml', $this->getWriterPart('meta_inf')->writeManifest());
+        $zip->addFile('Thumbnails/thumbnail.png', $this->getWriterPart('thumbnails')->writeThumbnail());
+        $zip->addFile('content.xml', $this->getWriterPart('content')->write());
+        $zip->addFile('meta.xml', $this->getWriterPart('meta')->write());
+        $zip->addFile('mimetype', $this->getWriterPart('mimetype')->write());
+        $zip->addFile('settings.xml', $this->getWriterPart('settings')->write());
+        $zip->addFile('styles.xml', $this->getWriterPart('styles')->write());
+
+        // Close file
+        try {
+            $zip->finish();
+        } catch (OverflowException $e) {
+            throw new WriterException('Could not close resource.');
+        }
+
+        $this->maybeCloseFileHandle();
+    }
+
+    /**
+     * Create zip object.
+     *
+     * @return ZipStream
+     */
+    private function createZip()
+    {
+        // Try opening the ZIP file
+        if (!is_resource($this->fileHandle)) {
+            throw new WriterException('Could not open resource for writing.');
+        }
+
+        // Create new ZIP stream
+        $options = new Archive();
+        $options->setEnableZip64(false);
+        $options->setOutputStream($this->fileHandle);
+
+        return new ZipStream(null, $options);
+    }
+
+    /**
+     * Get Spreadsheet object.
+     *
+     * @return Spreadsheet
+     */
+    public function getSpreadsheet()
+    {
+        if ($this->spreadSheet !== null) {
+            return $this->spreadSheet;
+        }
+
+        throw new WriterException('No PhpSpreadsheet assigned.');
+    }
+
+    /**
+     * Set Spreadsheet object.
+     *
+     * @param Spreadsheet $spreadsheet PhpSpreadsheet object
+     *
+     * @return $this
+     */
+    public function setSpreadsheet(Spreadsheet $spreadsheet)
+    {
+        $this->spreadSheet = $spreadsheet;
+
+        return $this;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Cell/Comment.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods\Cell;
+
+use PhpOffice\PhpSpreadsheet\Cell\Cell;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+
+/**
+ * @author     Alexander Pervakov <frost-nzcr4@jagmort.com>
+ */
+class Comment
+{
+    public static function write(XMLWriter $objWriter, Cell $cell): void
+    {
+        $comments = $cell->getWorksheet()->getComments();
+        if (!isset($comments[$cell->getCoordinate()])) {
+            return;
+        }
+        $comment = $comments[$cell->getCoordinate()];
+
+        $objWriter->startElement('office:annotation');
+        $objWriter->writeAttribute('svg:width', $comment->getWidth());
+        $objWriter->writeAttribute('svg:height', $comment->getHeight());
+        $objWriter->writeAttribute('svg:x', $comment->getMarginLeft());
+        $objWriter->writeAttribute('svg:y', $comment->getMarginTop());
+        $objWriter->writeElement('dc:creator', $comment->getAuthor());
+        $objWriter->writeElement('text:p', $comment->getText()->getPlainText());
+        $objWriter->endElement();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Content.php

@@ -0,0 +1,382 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Cell\Cell;
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\Cell\DataType;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Style\Fill;
+use PhpOffice\PhpSpreadsheet\Style\Font;
+use PhpOffice\PhpSpreadsheet\Worksheet\Row;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+use PhpOffice\PhpSpreadsheet\Writer\Exception;
+use PhpOffice\PhpSpreadsheet\Writer\Ods;
+use PhpOffice\PhpSpreadsheet\Writer\Ods\Cell\Comment;
+
+/**
+ * @author     Alexander Pervakov <frost-nzcr4@jagmort.com>
+ */
+class Content extends WriterPart
+{
+    const NUMBER_COLS_REPEATED_MAX = 1024;
+    const NUMBER_ROWS_REPEATED_MAX = 1048576;
+    const CELL_STYLE_PREFIX = 'ce';
+
+    private $formulaConvertor;
+
+    /**
+     * Set parent Ods writer.
+     */
+    public function __construct(Ods $writer)
+    {
+        parent::__construct($writer);
+
+        $this->formulaConvertor = new Formula($this->getParentWriter()->getSpreadsheet()->getDefinedNames());
+    }
+
+    /**
+     * Write content.xml to XML format.
+     *
+     * @return string XML Output
+     */
+    public function write()
+    {
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8');
+
+        // Content
+        $objWriter->startElement('office:document-content');
+        $objWriter->writeAttribute('xmlns:office', 'urn:oasis:names:tc:opendocument:xmlns:office:1.0');
+        $objWriter->writeAttribute('xmlns:style', 'urn:oasis:names:tc:opendocument:xmlns:style:1.0');
+        $objWriter->writeAttribute('xmlns:text', 'urn:oasis:names:tc:opendocument:xmlns:text:1.0');
+        $objWriter->writeAttribute('xmlns:table', 'urn:oasis:names:tc:opendocument:xmlns:table:1.0');
+        $objWriter->writeAttribute('xmlns:draw', 'urn:oasis:names:tc:opendocument:xmlns:drawing:1.0');
+        $objWriter->writeAttribute('xmlns:fo', 'urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0');
+        $objWriter->writeAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
+        $objWriter->writeAttribute('xmlns:dc', 'http://purl.org/dc/elements/1.1/');
+        $objWriter->writeAttribute('xmlns:meta', 'urn:oasis:names:tc:opendocument:xmlns:meta:1.0');
+        $objWriter->writeAttribute('xmlns:number', 'urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0');
+        $objWriter->writeAttribute('xmlns:presentation', 'urn:oasis:names:tc:opendocument:xmlns:presentation:1.0');
+        $objWriter->writeAttribute('xmlns:svg', 'urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0');
+        $objWriter->writeAttribute('xmlns:chart', 'urn:oasis:names:tc:opendocument:xmlns:chart:1.0');
+        $objWriter->writeAttribute('xmlns:dr3d', 'urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0');
+        $objWriter->writeAttribute('xmlns:math', 'http://www.w3.org/1998/Math/MathML');
+        $objWriter->writeAttribute('xmlns:form', 'urn:oasis:names:tc:opendocument:xmlns:form:1.0');
+        $objWriter->writeAttribute('xmlns:script', 'urn:oasis:names:tc:opendocument:xmlns:script:1.0');
+        $objWriter->writeAttribute('xmlns:ooo', 'http://openoffice.org/2004/office');
+        $objWriter->writeAttribute('xmlns:ooow', 'http://openoffice.org/2004/writer');
+        $objWriter->writeAttribute('xmlns:oooc', 'http://openoffice.org/2004/calc');
+        $objWriter->writeAttribute('xmlns:dom', 'http://www.w3.org/2001/xml-events');
+        $objWriter->writeAttribute('xmlns:xforms', 'http://www.w3.org/2002/xforms');
+        $objWriter->writeAttribute('xmlns:xsd', 'http://www.w3.org/2001/XMLSchema');
+        $objWriter->writeAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
+        $objWriter->writeAttribute('xmlns:rpt', 'http://openoffice.org/2005/report');
+        $objWriter->writeAttribute('xmlns:of', 'urn:oasis:names:tc:opendocument:xmlns:of:1.2');
+        $objWriter->writeAttribute('xmlns:xhtml', 'http://www.w3.org/1999/xhtml');
+        $objWriter->writeAttribute('xmlns:grddl', 'http://www.w3.org/2003/g/data-view#');
+        $objWriter->writeAttribute('xmlns:tableooo', 'http://openoffice.org/2009/table');
+        $objWriter->writeAttribute('xmlns:field', 'urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0');
+        $objWriter->writeAttribute('xmlns:formx', 'urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0');
+        $objWriter->writeAttribute('xmlns:css3t', 'http://www.w3.org/TR/css3-text/');
+        $objWriter->writeAttribute('office:version', '1.2');
+
+        $objWriter->writeElement('office:scripts');
+        $objWriter->writeElement('office:font-face-decls');
+
+        // Styles XF
+        $objWriter->startElement('office:automatic-styles');
+        $this->writeXfStyles($objWriter, $this->getParentWriter()->getSpreadsheet());
+        $objWriter->endElement();
+
+        $objWriter->startElement('office:body');
+        $objWriter->startElement('office:spreadsheet');
+        $objWriter->writeElement('table:calculation-settings');
+
+        $this->writeSheets($objWriter);
+
+        // Defined names (ranges and formulae)
+        (new NamedExpressions($objWriter, $this->getParentWriter()->getSpreadsheet(), $this->formulaConvertor))->write();
+
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write sheets.
+     */
+    private function writeSheets(XMLWriter $objWriter): void
+    {
+        $spreadsheet = $this->getParentWriter()->getSpreadsheet(); /** @var Spreadsheet $spreadsheet */
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            $objWriter->startElement('table:table');
+            $objWriter->writeAttribute('table:name', $spreadsheet->getSheet($i)->getTitle());
+            $objWriter->writeElement('office:forms');
+            $objWriter->startElement('table:table-column');
+            $objWriter->writeAttribute('table:number-columns-repeated', self::NUMBER_COLS_REPEATED_MAX);
+            $objWriter->endElement();
+            $this->writeRows($objWriter, $spreadsheet->getSheet($i));
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write rows of the specified sheet.
+     */
+    private function writeRows(XMLWriter $objWriter, Worksheet $sheet): void
+    {
+        $numberRowsRepeated = self::NUMBER_ROWS_REPEATED_MAX;
+        $span_row = 0;
+        $rows = $sheet->getRowIterator();
+        while ($rows->valid()) {
+            --$numberRowsRepeated;
+            $row = $rows->current();
+            if ($row->getCellIterator()->valid()) {
+                if ($span_row) {
+                    $objWriter->startElement('table:table-row');
+                    if ($span_row > 1) {
+                        $objWriter->writeAttribute('table:number-rows-repeated', $span_row);
+                    }
+                    $objWriter->startElement('table:table-cell');
+                    $objWriter->writeAttribute('table:number-columns-repeated', self::NUMBER_COLS_REPEATED_MAX);
+                    $objWriter->endElement();
+                    $objWriter->endElement();
+                    $span_row = 0;
+                }
+                $objWriter->startElement('table:table-row');
+                $this->writeCells($objWriter, $row);
+                $objWriter->endElement();
+            } else {
+                ++$span_row;
+            }
+            $rows->next();
+        }
+    }
+
+    /**
+     * Write cells of the specified row.
+     */
+    private function writeCells(XMLWriter $objWriter, Row $row): void
+    {
+        $numberColsRepeated = self::NUMBER_COLS_REPEATED_MAX;
+        $prevColumn = -1;
+        $cells = $row->getCellIterator();
+        while ($cells->valid()) {
+            /** @var \PhpOffice\PhpSpreadsheet\Cell\Cell $cell */
+            $cell = $cells->current();
+            $column = Coordinate::columnIndexFromString($cell->getColumn()) - 1;
+
+            $this->writeCellSpan($objWriter, $column, $prevColumn);
+            $objWriter->startElement('table:table-cell');
+            $this->writeCellMerge($objWriter, $cell);
+
+            // Style XF
+            $style = $cell->getXfIndex();
+            if ($style !== null) {
+                $objWriter->writeAttribute('table:style-name', self::CELL_STYLE_PREFIX . $style);
+            }
+
+            switch ($cell->getDataType()) {
+                case DataType::TYPE_BOOL:
+                    $objWriter->writeAttribute('office:value-type', 'boolean');
+                    $objWriter->writeAttribute('office:value', $cell->getValue());
+                    $objWriter->writeElement('text:p', $cell->getValue());
+
+                    break;
+                case DataType::TYPE_ERROR:
+                    throw new Exception('Writing of error not implemented yet.');
+
+                    break;
+                case DataType::TYPE_FORMULA:
+                    $formulaValue = $cell->getValue();
+                    if ($this->getParentWriter()->getPreCalculateFormulas()) {
+                        try {
+                            $formulaValue = $cell->getCalculatedValue();
+                        } catch (Exception $e) {
+                            // don't do anything
+                        }
+                    }
+                    $objWriter->writeAttribute('table:formula', $this->formulaConvertor->convertFormula($cell->getValue()));
+                    if (is_numeric($formulaValue)) {
+                        $objWriter->writeAttribute('office:value-type', 'float');
+                    } else {
+                        $objWriter->writeAttribute('office:value-type', 'string');
+                    }
+                    $objWriter->writeAttribute('office:value', $formulaValue);
+                    $objWriter->writeElement('text:p', $formulaValue);
+
+                    break;
+                case DataType::TYPE_INLINE:
+                    throw new Exception('Writing of inline not implemented yet.');
+
+                    break;
+                case DataType::TYPE_NUMERIC:
+                    $objWriter->writeAttribute('office:value-type', 'float');
+                    $objWriter->writeAttribute('office:value', $cell->getValue());
+                    $objWriter->writeElement('text:p', $cell->getValue());
+
+                    break;
+                case DataType::TYPE_STRING:
+                    $objWriter->writeAttribute('office:value-type', 'string');
+                    $objWriter->writeElement('text:p', $cell->getValue());
+
+                    break;
+            }
+            Comment::write($objWriter, $cell);
+            $objWriter->endElement();
+            $prevColumn = $column;
+            $cells->next();
+        }
+        $numberColsRepeated = $numberColsRepeated - $prevColumn - 1;
+        if ($numberColsRepeated > 0) {
+            if ($numberColsRepeated > 1) {
+                $objWriter->startElement('table:table-cell');
+                $objWriter->writeAttribute('table:number-columns-repeated', $numberColsRepeated);
+                $objWriter->endElement();
+            } else {
+                $objWriter->writeElement('table:table-cell');
+            }
+        }
+    }
+
+    /**
+     * Write span.
+     *
+     * @param int $curColumn
+     * @param int $prevColumn
+     */
+    private function writeCellSpan(XMLWriter $objWriter, $curColumn, $prevColumn): void
+    {
+        $diff = $curColumn - $prevColumn - 1;
+        if (1 === $diff) {
+            $objWriter->writeElement('table:table-cell');
+        } elseif ($diff > 1) {
+            $objWriter->startElement('table:table-cell');
+            $objWriter->writeAttribute('table:number-columns-repeated', $diff);
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write XF cell styles.
+     */
+    private function writeXfStyles(XMLWriter $writer, Spreadsheet $spreadsheet): void
+    {
+        foreach ($spreadsheet->getCellXfCollection() as $style) {
+            $writer->startElement('style:style');
+            $writer->writeAttribute('style:name', self::CELL_STYLE_PREFIX . $style->getIndex());
+            $writer->writeAttribute('style:family', 'table-cell');
+            $writer->writeAttribute('style:parent-style-name', 'Default');
+
+            // style:text-properties
+
+            // Font
+            $writer->startElement('style:text-properties');
+
+            $font = $style->getFont();
+
+            if ($font->getBold()) {
+                $writer->writeAttribute('fo:font-weight', 'bold');
+                $writer->writeAttribute('style:font-weight-complex', 'bold');
+                $writer->writeAttribute('style:font-weight-asian', 'bold');
+            }
+
+            if ($font->getItalic()) {
+                $writer->writeAttribute('fo:font-style', 'italic');
+            }
+
+            if ($color = $font->getColor()) {
+                $writer->writeAttribute('fo:color', sprintf('#%s', $color->getRGB()));
+            }
+
+            if ($family = $font->getName()) {
+                $writer->writeAttribute('fo:font-family', $family);
+            }
+
+            if ($size = $font->getSize()) {
+                $writer->writeAttribute('fo:font-size', sprintf('%.1Fpt', $size));
+            }
+
+            if ($font->getUnderline() && $font->getUnderline() != Font::UNDERLINE_NONE) {
+                $writer->writeAttribute('style:text-underline-style', 'solid');
+                $writer->writeAttribute('style:text-underline-width', 'auto');
+                $writer->writeAttribute('style:text-underline-color', 'font-color');
+
+                switch ($font->getUnderline()) {
+                    case Font::UNDERLINE_DOUBLE:
+                        $writer->writeAttribute('style:text-underline-type', 'double');
+
+                        break;
+                    case Font::UNDERLINE_SINGLE:
+                        $writer->writeAttribute('style:text-underline-type', 'single');
+
+                        break;
+                }
+            }
+
+            $writer->endElement(); // Close style:text-properties
+
+            // style:table-cell-properties
+
+            $writer->startElement('style:table-cell-properties');
+            $writer->writeAttribute('style:rotation-align', 'none');
+
+            // Fill
+            if ($fill = $style->getFill()) {
+                switch ($fill->getFillType()) {
+                    case Fill::FILL_SOLID:
+                        $writer->writeAttribute('fo:background-color', sprintf(
+                            '#%s',
+                            strtolower($fill->getStartColor()->getRGB())
+                        ));
+
+                        break;
+                    case Fill::FILL_GRADIENT_LINEAR:
+                    case Fill::FILL_GRADIENT_PATH:
+                        /// TODO :: To be implemented
+                        break;
+                    case Fill::FILL_NONE:
+                    default:
+                }
+            }
+
+            $writer->endElement(); // Close style:table-cell-properties
+
+            // End
+
+            $writer->endElement(); // Close style:style
+        }
+    }
+
+    /**
+     * Write attributes for merged cell.
+     */
+    private function writeCellMerge(XMLWriter $objWriter, Cell $cell): void
+    {
+        if (!$cell->isMergeRangeValueCell()) {
+            return;
+        }
+
+        $mergeRange = Coordinate::splitRange($cell->getMergeRange());
+        [$startCell, $endCell] = $mergeRange[0];
+        $start = Coordinate::coordinateFromString($startCell);
+        $end = Coordinate::coordinateFromString($endCell);
+        $columnSpan = Coordinate::columnIndexFromString($end[0]) - Coordinate::columnIndexFromString($start[0]) + 1;
+        $rowSpan = $end[1] - $start[1] + 1;
+
+        $objWriter->writeAttribute('table:number-columns-spanned', $columnSpan);
+        $objWriter->writeAttribute('table:number-rows-spanned', $rowSpan);
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Formula.php

@@ -0,0 +1,119 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\DefinedName;
+
+class Formula
+{
+    private $definedNames = [];
+
+    /**
+     * @param DefinedName[] $definedNames
+     */
+    public function __construct(array $definedNames)
+    {
+        foreach ($definedNames as $definedName) {
+            $this->definedNames[] = $definedName->getName();
+        }
+    }
+
+    public function convertFormula(string $formula, string $worksheetName = ''): string
+    {
+        $formula = $this->convertCellReferences($formula, $worksheetName);
+        $formula = $this->convertDefinedNames($formula);
+
+        if (substr($formula, 0, 1) !== '=') {
+            $formula = '=' . $formula;
+        }
+
+        return 'of:' . $formula;
+    }
+
+    private function convertDefinedNames(string $formula): string
+    {
+        $splitCount = preg_match_all(
+            '/' . Calculation::CALCULATION_REGEXP_DEFINEDNAME . '/mui',
+            $formula,
+            $splitRanges,
+            PREG_OFFSET_CAPTURE
+        );
+
+        $lengths = array_map('strlen', array_column($splitRanges[0], 0));
+        $offsets = array_column($splitRanges[0], 1);
+        $values = array_column($splitRanges[0], 0);
+
+        while ($splitCount > 0) {
+            --$splitCount;
+            $length = $lengths[$splitCount];
+            $offset = $offsets[$splitCount];
+            $value = $values[$splitCount];
+
+            if (in_array($value, $this->definedNames, true)) {
+                $formula = substr($formula, 0, $offset) . '$$' . $value . substr($formula, $offset + $length);
+            }
+        }
+
+        return $formula;
+    }
+
+    private function convertCellReferences(string $formula, string $worksheetName): string
+    {
+        $splitCount = preg_match_all(
+            '/' . Calculation::CALCULATION_REGEXP_CELLREF_RELATIVE . '/mui',
+            $formula,
+            $splitRanges,
+            PREG_OFFSET_CAPTURE
+        );
+
+        $lengths = array_map('strlen', array_column($splitRanges[0], 0));
+        $offsets = array_column($splitRanges[0], 1);
+
+        $worksheets = $splitRanges[2];
+        $columns = $splitRanges[6];
+        $rows = $splitRanges[7];
+
+        // Replace any commas in the formula with semi-colons for Ods
+        // If by chance there are commas in worksheet names, then they will be "fixed" again in the loop
+        //    because we've already extracted worksheet names with our preg_match_all()
+        $formula = str_replace(',', ';', $formula);
+        while ($splitCount > 0) {
+            --$splitCount;
+            $length = $lengths[$splitCount];
+            $offset = $offsets[$splitCount];
+            $worksheet = $worksheets[$splitCount][0];
+            $column = $columns[$splitCount][0];
+            $row = $rows[$splitCount][0];
+
+            $newRange = '';
+            if (empty($worksheet)) {
+                if (($offset === 0) || ($formula[$offset - 1] !== ':')) {
+                    // We need a worksheet
+                    $worksheet = $worksheetName;
+                }
+            } else {
+                $worksheet = str_replace("''", "'", trim($worksheet, "'"));
+            }
+            if (!empty($worksheet)) {
+                $newRange = "['" . str_replace("'", "''", $worksheet) . "'";
+            } elseif (substr($formula, $offset - 1, 1) !== ':') {
+                $newRange = '[';
+            }
+            $newRange .= '.';
+
+            if (!empty($column)) {
+                $newRange .= $column;
+            }
+            if (!empty($row)) {
+                $newRange .= $row;
+            }
+            // close the wrapping [] unless this is the first part of a range
+            $newRange .= substr($formula, $offset + $length, 1) !== ':' ? ']' : '';
+
+            $formula = substr($formula, 0, $offset) . $newRange . substr($formula, $offset + $length);
+        }
+
+        return $formula;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Meta.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Meta extends WriterPart
+{
+    /**
+     * Write meta.xml to XML format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function write(?Spreadsheet $spreadsheet = null)
+    {
+        if (!$spreadsheet) {
+            $spreadsheet = $this->getParentWriter()->getSpreadsheet();
+        }
+
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8');
+
+        // Meta
+        $objWriter->startElement('office:document-meta');
+
+        $objWriter->writeAttribute('xmlns:office', 'urn:oasis:names:tc:opendocument:xmlns:office:1.0');
+        $objWriter->writeAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
+        $objWriter->writeAttribute('xmlns:dc', 'http://purl.org/dc/elements/1.1/');
+        $objWriter->writeAttribute('xmlns:meta', 'urn:oasis:names:tc:opendocument:xmlns:meta:1.0');
+        $objWriter->writeAttribute('xmlns:ooo', 'http://openoffice.org/2004/office');
+        $objWriter->writeAttribute('xmlns:grddl', 'http://www.w3.org/2003/g/data-view#');
+        $objWriter->writeAttribute('office:version', '1.2');
+
+        $objWriter->startElement('office:meta');
+
+        $objWriter->writeElement('meta:initial-creator', $spreadsheet->getProperties()->getCreator());
+        $objWriter->writeElement('dc:creator', $spreadsheet->getProperties()->getCreator());
+        $objWriter->writeElement('meta:creation-date', date(DATE_W3C, $spreadsheet->getProperties()->getCreated()));
+        $objWriter->writeElement('dc:date', date(DATE_W3C, $spreadsheet->getProperties()->getCreated()));
+        $objWriter->writeElement('dc:title', $spreadsheet->getProperties()->getTitle());
+        $objWriter->writeElement('dc:description', $spreadsheet->getProperties()->getDescription());
+        $objWriter->writeElement('dc:subject', $spreadsheet->getProperties()->getSubject());
+        $keywords = explode(' ', $spreadsheet->getProperties()->getKeywords());
+        foreach ($keywords as $keyword) {
+            $objWriter->writeElement('meta:keyword', $keyword);
+        }
+
+        //<meta:document-statistic meta:table-count="XXX" meta:cell-count="XXX" meta:object-count="XXX"/>
+        $objWriter->startElement('meta:user-defined');
+        $objWriter->writeAttribute('meta:name', 'Company');
+        $objWriter->writeRaw($spreadsheet->getProperties()->getCompany());
+        $objWriter->endElement();
+
+        $objWriter->startElement('meta:user-defined');
+        $objWriter->writeAttribute('meta:name', 'category');
+        $objWriter->writeRaw($spreadsheet->getProperties()->getCategory());
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/MetaInf.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+
+class MetaInf extends WriterPart
+{
+    /**
+     * Write META-INF/manifest.xml to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeManifest()
+    {
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8');
+
+        // Manifest
+        $objWriter->startElement('manifest:manifest');
+        $objWriter->writeAttribute('xmlns:manifest', 'urn:oasis:names:tc:opendocument:xmlns:manifest:1.0');
+        $objWriter->writeAttribute('manifest:version', '1.2');
+
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', '/');
+        $objWriter->writeAttribute('manifest:version', '1.2');
+        $objWriter->writeAttribute('manifest:media-type', 'application/vnd.oasis.opendocument.spreadsheet');
+        $objWriter->endElement();
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', 'meta.xml');
+        $objWriter->writeAttribute('manifest:media-type', 'text/xml');
+        $objWriter->endElement();
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', 'settings.xml');
+        $objWriter->writeAttribute('manifest:media-type', 'text/xml');
+        $objWriter->endElement();
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', 'content.xml');
+        $objWriter->writeAttribute('manifest:media-type', 'text/xml');
+        $objWriter->endElement();
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', 'Thumbnails/thumbnail.png');
+        $objWriter->writeAttribute('manifest:media-type', 'image/png');
+        $objWriter->endElement();
+        $objWriter->startElement('manifest:file-entry');
+        $objWriter->writeAttribute('manifest:full-path', 'styles.xml');
+        $objWriter->writeAttribute('manifest:media-type', 'text/xml');
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Mimetype.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Mimetype extends WriterPart
+{
+    /**
+     * Write mimetype to plain text format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function write(?Spreadsheet $spreadsheet = null)
+    {
+        return 'application/vnd.oasis.opendocument.spreadsheet';
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/NamedExpressions.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\DefinedName;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class NamedExpressions
+{
+    private $objWriter;
+
+    private $spreadsheet;
+
+    private $formulaConvertor;
+
+    public function __construct(XMLWriter $objWriter, Spreadsheet $spreadsheet, $formulaConvertor)
+    {
+        $this->objWriter = $objWriter;
+        $this->spreadsheet = $spreadsheet;
+        $this->formulaConvertor = $formulaConvertor;
+    }
+
+    public function write(): void
+    {
+        $this->objWriter->startElement('table:named-expressions');
+        $this->writeExpressions();
+        $this->objWriter->endElement();
+    }
+
+    private function writeExpressions(): void
+    {
+        $definedNames = $this->spreadsheet->getDefinedNames();
+
+        foreach ($definedNames as $definedName) {
+            if ($definedName->isFormula()) {
+                $this->objWriter->startElement('table:named-expression');
+                $this->writeNamedFormula($definedName, $this->spreadsheet->getActiveSheet());
+            } else {
+                $this->objWriter->startElement('table:named-range');
+                $this->writeNamedRange($definedName);
+            }
+
+            $this->objWriter->endElement();
+        }
+    }
+
+    private function writeNamedFormula(DefinedName $definedName, Worksheet $defaultWorksheet): void
+    {
+        $this->objWriter->writeAttribute('table:name', $definedName->getName());
+        $this->objWriter->writeAttribute(
+            'table:expression',
+            $this->formulaConvertor->convertFormula($definedName->getValue(), $definedName->getWorksheet()->getTitle())
+        );
+        $this->objWriter->writeAttribute('table:base-cell-address', $this->convertAddress(
+            $definedName,
+            "'" . (($definedName->getWorksheet() !== null) ? $definedName->getWorksheet()->getTitle() : $defaultWorksheet->getTitle()) . "'!\$A\$1"
+        ));
+    }
+
+    private function writeNamedRange(DefinedName $definedName): void
+    {
+        $this->objWriter->writeAttribute('table:name', $definedName->getName());
+        $this->objWriter->writeAttribute('table:base-cell-address', $this->convertAddress(
+            $definedName,
+            "'" . $definedName->getWorksheet()->getTitle() . "'!\$A\$1"
+        ));
+        $this->objWriter->writeAttribute('table:cell-range-address', $this->convertAddress($definedName, $definedName->getValue()));
+    }
+
+    private function convertAddress(DefinedName $definedName, string $address): string
+    {
+        $splitCount = preg_match_all(
+            '/' . Calculation::CALCULATION_REGEXP_CELLREF_RELATIVE . '/mui',
+            $address,
+            $splitRanges,
+            PREG_OFFSET_CAPTURE
+        );
+
+        $lengths = array_map('strlen', array_column($splitRanges[0], 0));
+        $offsets = array_column($splitRanges[0], 1);
+
+        $worksheets = $splitRanges[2];
+        $columns = $splitRanges[6];
+        $rows = $splitRanges[7];
+
+        while ($splitCount > 0) {
+            --$splitCount;
+            $length = $lengths[$splitCount];
+            $offset = $offsets[$splitCount];
+            $worksheet = $worksheets[$splitCount][0];
+            $column = $columns[$splitCount][0];
+            $row = $rows[$splitCount][0];
+
+            $newRange = '';
+            if (empty($worksheet)) {
+                if (($offset === 0) || ($address[$offset - 1] !== ':')) {
+                    // We need a worksheet
+                    $worksheet = $definedName->getWorksheet()->getTitle();
+                }
+            } else {
+                $worksheet = str_replace("''", "'", trim($worksheet, "'"));
+            }
+            if (!empty($worksheet)) {
+                $newRange = "'" . str_replace("'", "''", $worksheet) . "'.";
+            }
+
+            if (!empty($column)) {
+                $newRange .= $column;
+            }
+            if (!empty($row)) {
+                $newRange .= $row;
+            }
+
+            $address = substr($address, 0, $offset) . $newRange . substr($address, $offset + $length);
+        }
+
+        if (substr($address, 0, 1) === '=') {
+            $address = substr($address, 1);
+        }
+
+        return $address;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Settings.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Settings extends WriterPart
+{
+    /**
+     * Write settings.xml to XML format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function write(?Spreadsheet $spreadsheet = null)
+    {
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8');
+
+        // Settings
+        $objWriter->startElement('office:document-settings');
+        $objWriter->writeAttribute('xmlns:office', 'urn:oasis:names:tc:opendocument:xmlns:office:1.0');
+        $objWriter->writeAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
+        $objWriter->writeAttribute('xmlns:config', 'urn:oasis:names:tc:opendocument:xmlns:config:1.0');
+        $objWriter->writeAttribute('xmlns:ooo', 'http://openoffice.org/2004/office');
+        $objWriter->writeAttribute('office:version', '1.2');
+
+        $objWriter->startElement('office:settings');
+        $objWriter->startElement('config:config-item-set');
+        $objWriter->writeAttribute('config:name', 'ooo:view-settings');
+        $objWriter->startElement('config:config-item-map-indexed');
+        $objWriter->writeAttribute('config:name', 'Views');
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->startElement('config:config-item-set');
+        $objWriter->writeAttribute('config:name', 'ooo:configuration-settings');
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Styles.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Styles extends WriterPart
+{
+    /**
+     * Write styles.xml to XML format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function write(?Spreadsheet $spreadsheet = null)
+    {
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8');
+
+        // Content
+        $objWriter->startElement('office:document-styles');
+        $objWriter->writeAttribute('xmlns:office', 'urn:oasis:names:tc:opendocument:xmlns:office:1.0');
+        $objWriter->writeAttribute('xmlns:style', 'urn:oasis:names:tc:opendocument:xmlns:style:1.0');
+        $objWriter->writeAttribute('xmlns:text', 'urn:oasis:names:tc:opendocument:xmlns:text:1.0');
+        $objWriter->writeAttribute('xmlns:table', 'urn:oasis:names:tc:opendocument:xmlns:table:1.0');
+        $objWriter->writeAttribute('xmlns:draw', 'urn:oasis:names:tc:opendocument:xmlns:drawing:1.0');
+        $objWriter->writeAttribute('xmlns:fo', 'urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0');
+        $objWriter->writeAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink');
+        $objWriter->writeAttribute('xmlns:dc', 'http://purl.org/dc/elements/1.1/');
+        $objWriter->writeAttribute('xmlns:meta', 'urn:oasis:names:tc:opendocument:xmlns:meta:1.0');
+        $objWriter->writeAttribute('xmlns:number', 'urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0');
+        $objWriter->writeAttribute('xmlns:presentation', 'urn:oasis:names:tc:opendocument:xmlns:presentation:1.0');
+        $objWriter->writeAttribute('xmlns:svg', 'urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0');
+        $objWriter->writeAttribute('xmlns:chart', 'urn:oasis:names:tc:opendocument:xmlns:chart:1.0');
+        $objWriter->writeAttribute('xmlns:dr3d', 'urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0');
+        $objWriter->writeAttribute('xmlns:math', 'http://www.w3.org/1998/Math/MathML');
+        $objWriter->writeAttribute('xmlns:form', 'urn:oasis:names:tc:opendocument:xmlns:form:1.0');
+        $objWriter->writeAttribute('xmlns:script', 'urn:oasis:names:tc:opendocument:xmlns:script:1.0');
+        $objWriter->writeAttribute('xmlns:ooo', 'http://openoffice.org/2004/office');
+        $objWriter->writeAttribute('xmlns:ooow', 'http://openoffice.org/2004/writer');
+        $objWriter->writeAttribute('xmlns:oooc', 'http://openoffice.org/2004/calc');
+        $objWriter->writeAttribute('xmlns:dom', 'http://www.w3.org/2001/xml-events');
+        $objWriter->writeAttribute('xmlns:rpt', 'http://openoffice.org/2005/report');
+        $objWriter->writeAttribute('xmlns:of', 'urn:oasis:names:tc:opendocument:xmlns:of:1.2');
+        $objWriter->writeAttribute('xmlns:xhtml', 'http://www.w3.org/1999/xhtml');
+        $objWriter->writeAttribute('xmlns:grddl', 'http://www.w3.org/2003/g/data-view#');
+        $objWriter->writeAttribute('xmlns:tableooo', 'http://openoffice.org/2009/table');
+        $objWriter->writeAttribute('xmlns:css3t', 'http://www.w3.org/TR/css3-text/');
+        $objWriter->writeAttribute('office:version', '1.2');
+
+        $objWriter->writeElement('office:font-face-decls');
+        $objWriter->writeElement('office:styles');
+        $objWriter->writeElement('office:automatic-styles');
+        $objWriter->writeElement('office:master-styles');
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/Thumbnails.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Thumbnails extends WriterPart
+{
+    /**
+     * Write Thumbnails/thumbnail.png to PNG format.
+     *
+     * @param Spreadsheet $spreadsheet
+     *
+     * @return string XML Output
+     */
+    public function writeThumbnail(?Spreadsheet $spreadsheet = null)
+    {
+        return '';
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Ods/WriterPart.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+use PhpOffice\PhpSpreadsheet\Writer\Ods;
+
+abstract class WriterPart
+{
+    /**
+     * Parent Ods object.
+     *
+     * @var Ods
+     */
+    private $parentWriter;
+
+    /**
+     * Get Ods writer.
+     *
+     * @return Ods
+     */
+    public function getParentWriter()
+    {
+        return $this->parentWriter;
+    }
+
+    /**
+     * Set parent Ods writer.
+     */
+    public function __construct(Ods $writer)
+    {
+        $this->parentWriter = $writer;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf.php

@@ -0,0 +1,253 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Shared\File;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\PageSetup;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+
+abstract class Pdf extends Html
+{
+    /**
+     * Temporary storage directory.
+     *
+     * @var string
+     */
+    protected $tempDir = '';
+
+    /**
+     * Font.
+     *
+     * @var string
+     */
+    protected $font = 'freesans';
+
+    /**
+     * Orientation (Over-ride).
+     *
+     * @var string
+     */
+    protected $orientation;
+
+    /**
+     * Paper size (Over-ride).
+     *
+     * @var int
+     */
+    protected $paperSize;
+
+    /**
+     * Paper Sizes xRef List.
+     *
+     * @var array
+     */
+    protected static $paperSizes = [
+        PageSetup::PAPERSIZE_LETTER => 'LETTER', //    (8.5 in. by 11 in.)
+        PageSetup::PAPERSIZE_LETTER_SMALL => 'LETTER', //    (8.5 in. by 11 in.)
+        PageSetup::PAPERSIZE_TABLOID => [792.00, 1224.00], //    (11 in. by 17 in.)
+        PageSetup::PAPERSIZE_LEDGER => [1224.00, 792.00], //    (17 in. by 11 in.)
+        PageSetup::PAPERSIZE_LEGAL => 'LEGAL', //    (8.5 in. by 14 in.)
+        PageSetup::PAPERSIZE_STATEMENT => [396.00, 612.00], //    (5.5 in. by 8.5 in.)
+        PageSetup::PAPERSIZE_EXECUTIVE => 'EXECUTIVE', //    (7.25 in. by 10.5 in.)
+        PageSetup::PAPERSIZE_A3 => 'A3', //    (297 mm by 420 mm)
+        PageSetup::PAPERSIZE_A4 => 'A4', //    (210 mm by 297 mm)
+        PageSetup::PAPERSIZE_A4_SMALL => 'A4', //    (210 mm by 297 mm)
+        PageSetup::PAPERSIZE_A5 => 'A5', //    (148 mm by 210 mm)
+        PageSetup::PAPERSIZE_B4 => 'B4', //    (250 mm by 353 mm)
+        PageSetup::PAPERSIZE_B5 => 'B5', //    (176 mm by 250 mm)
+        PageSetup::PAPERSIZE_FOLIO => 'FOLIO', //    (8.5 in. by 13 in.)
+        PageSetup::PAPERSIZE_QUARTO => [609.45, 779.53], //    (215 mm by 275 mm)
+        PageSetup::PAPERSIZE_STANDARD_1 => [720.00, 1008.00], //    (10 in. by 14 in.)
+        PageSetup::PAPERSIZE_STANDARD_2 => [792.00, 1224.00], //    (11 in. by 17 in.)
+        PageSetup::PAPERSIZE_NOTE => 'LETTER', //    (8.5 in. by 11 in.)
+        PageSetup::PAPERSIZE_NO9_ENVELOPE => [279.00, 639.00], //    (3.875 in. by 8.875 in.)
+        PageSetup::PAPERSIZE_NO10_ENVELOPE => [297.00, 684.00], //    (4.125 in. by 9.5 in.)
+        PageSetup::PAPERSIZE_NO11_ENVELOPE => [324.00, 747.00], //    (4.5 in. by 10.375 in.)
+        PageSetup::PAPERSIZE_NO12_ENVELOPE => [342.00, 792.00], //    (4.75 in. by 11 in.)
+        PageSetup::PAPERSIZE_NO14_ENVELOPE => [360.00, 828.00], //    (5 in. by 11.5 in.)
+        PageSetup::PAPERSIZE_C => [1224.00, 1584.00], //    (17 in. by 22 in.)
+        PageSetup::PAPERSIZE_D => [1584.00, 2448.00], //    (22 in. by 34 in.)
+        PageSetup::PAPERSIZE_E => [2448.00, 3168.00], //    (34 in. by 44 in.)
+        PageSetup::PAPERSIZE_DL_ENVELOPE => [311.81, 623.62], //    (110 mm by 220 mm)
+        PageSetup::PAPERSIZE_C5_ENVELOPE => 'C5', //    (162 mm by 229 mm)
+        PageSetup::PAPERSIZE_C3_ENVELOPE => 'C3', //    (324 mm by 458 mm)
+        PageSetup::PAPERSIZE_C4_ENVELOPE => 'C4', //    (229 mm by 324 mm)
+        PageSetup::PAPERSIZE_C6_ENVELOPE => 'C6', //    (114 mm by 162 mm)
+        PageSetup::PAPERSIZE_C65_ENVELOPE => [323.15, 649.13], //    (114 mm by 229 mm)
+        PageSetup::PAPERSIZE_B4_ENVELOPE => 'B4', //    (250 mm by 353 mm)
+        PageSetup::PAPERSIZE_B5_ENVELOPE => 'B5', //    (176 mm by 250 mm)
+        PageSetup::PAPERSIZE_B6_ENVELOPE => [498.90, 354.33], //    (176 mm by 125 mm)
+        PageSetup::PAPERSIZE_ITALY_ENVELOPE => [311.81, 651.97], //    (110 mm by 230 mm)
+        PageSetup::PAPERSIZE_MONARCH_ENVELOPE => [279.00, 540.00], //    (3.875 in. by 7.5 in.)
+        PageSetup::PAPERSIZE_6_3_4_ENVELOPE => [261.00, 468.00], //    (3.625 in. by 6.5 in.)
+        PageSetup::PAPERSIZE_US_STANDARD_FANFOLD => [1071.00, 792.00], //    (14.875 in. by 11 in.)
+        PageSetup::PAPERSIZE_GERMAN_STANDARD_FANFOLD => [612.00, 864.00], //    (8.5 in. by 12 in.)
+        PageSetup::PAPERSIZE_GERMAN_LEGAL_FANFOLD => 'FOLIO', //    (8.5 in. by 13 in.)
+        PageSetup::PAPERSIZE_ISO_B4 => 'B4', //    (250 mm by 353 mm)
+        PageSetup::PAPERSIZE_JAPANESE_DOUBLE_POSTCARD => [566.93, 419.53], //    (200 mm by 148 mm)
+        PageSetup::PAPERSIZE_STANDARD_PAPER_1 => [648.00, 792.00], //    (9 in. by 11 in.)
+        PageSetup::PAPERSIZE_STANDARD_PAPER_2 => [720.00, 792.00], //    (10 in. by 11 in.)
+        PageSetup::PAPERSIZE_STANDARD_PAPER_3 => [1080.00, 792.00], //    (15 in. by 11 in.)
+        PageSetup::PAPERSIZE_INVITE_ENVELOPE => [623.62, 623.62], //    (220 mm by 220 mm)
+        PageSetup::PAPERSIZE_LETTER_EXTRA_PAPER => [667.80, 864.00], //    (9.275 in. by 12 in.)
+        PageSetup::PAPERSIZE_LEGAL_EXTRA_PAPER => [667.80, 1080.00], //    (9.275 in. by 15 in.)
+        PageSetup::PAPERSIZE_TABLOID_EXTRA_PAPER => [841.68, 1296.00], //    (11.69 in. by 18 in.)
+        PageSetup::PAPERSIZE_A4_EXTRA_PAPER => [668.98, 912.76], //    (236 mm by 322 mm)
+        PageSetup::PAPERSIZE_LETTER_TRANSVERSE_PAPER => [595.80, 792.00], //    (8.275 in. by 11 in.)
+        PageSetup::PAPERSIZE_A4_TRANSVERSE_PAPER => 'A4', //    (210 mm by 297 mm)
+        PageSetup::PAPERSIZE_LETTER_EXTRA_TRANSVERSE_PAPER => [667.80, 864.00], //    (9.275 in. by 12 in.)
+        PageSetup::PAPERSIZE_SUPERA_SUPERA_A4_PAPER => [643.46, 1009.13], //    (227 mm by 356 mm)
+        PageSetup::PAPERSIZE_SUPERB_SUPERB_A3_PAPER => [864.57, 1380.47], //    (305 mm by 487 mm)
+        PageSetup::PAPERSIZE_LETTER_PLUS_PAPER => [612.00, 913.68], //    (8.5 in. by 12.69 in.)
+        PageSetup::PAPERSIZE_A4_PLUS_PAPER => [595.28, 935.43], //    (210 mm by 330 mm)
+        PageSetup::PAPERSIZE_A5_TRANSVERSE_PAPER => 'A5', //    (148 mm by 210 mm)
+        PageSetup::PAPERSIZE_JIS_B5_TRANSVERSE_PAPER => [515.91, 728.50], //    (182 mm by 257 mm)
+        PageSetup::PAPERSIZE_A3_EXTRA_PAPER => [912.76, 1261.42], //    (322 mm by 445 mm)
+        PageSetup::PAPERSIZE_A5_EXTRA_PAPER => [493.23, 666.14], //    (174 mm by 235 mm)
+        PageSetup::PAPERSIZE_ISO_B5_EXTRA_PAPER => [569.76, 782.36], //    (201 mm by 276 mm)
+        PageSetup::PAPERSIZE_A2_PAPER => 'A2', //    (420 mm by 594 mm)
+        PageSetup::PAPERSIZE_A3_TRANSVERSE_PAPER => 'A3', //    (297 mm by 420 mm)
+        PageSetup::PAPERSIZE_A3_EXTRA_TRANSVERSE_PAPER => [912.76, 1261.42], //    (322 mm by 445 mm)
+    ];
+
+    /**
+     * Create a new PDF Writer instance.
+     *
+     * @param Spreadsheet $spreadsheet Spreadsheet object
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        parent::__construct($spreadsheet);
+        //$this->setUseInlineCss(true);
+        $this->tempDir = File::sysGetTempDir() . '/phpsppdf';
+        $this->isPdf = true;
+    }
+
+    /**
+     * Get Font.
+     *
+     * @return string
+     */
+    public function getFont()
+    {
+        return $this->font;
+    }
+
+    /**
+     * Set font. Examples:
+     *      'arialunicid0-chinese-simplified'
+     *      'arialunicid0-chinese-traditional'
+     *      'arialunicid0-korean'
+     *      'arialunicid0-japanese'.
+     *
+     * @param string $fontName
+     *
+     * @return $this
+     */
+    public function setFont($fontName)
+    {
+        $this->font = $fontName;
+
+        return $this;
+    }
+
+    /**
+     * Get Paper Size.
+     *
+     * @return int
+     */
+    public function getPaperSize()
+    {
+        return $this->paperSize;
+    }
+
+    /**
+     * Set Paper Size.
+     *
+     * @param string $pValue Paper size see PageSetup::PAPERSIZE_*
+     *
+     * @return self
+     */
+    public function setPaperSize($pValue)
+    {
+        $this->paperSize = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get Orientation.
+     *
+     * @return string
+     */
+    public function getOrientation()
+    {
+        return $this->orientation;
+    }
+
+    /**
+     * Set Orientation.
+     *
+     * @param string $pValue Page orientation see PageSetup::ORIENTATION_*
+     *
+     * @return self
+     */
+    public function setOrientation($pValue)
+    {
+        $this->orientation = $pValue;
+
+        return $this;
+    }
+
+    /**
+     * Get temporary storage directory.
+     *
+     * @return string
+     */
+    public function getTempDir()
+    {
+        return $this->tempDir;
+    }
+
+    /**
+     * Set temporary storage directory.
+     *
+     * @param string $pValue Temporary storage directory
+     *
+     * @return self
+     */
+    public function setTempDir($pValue)
+    {
+        if (is_dir($pValue)) {
+            $this->tempDir = $pValue;
+        } else {
+            throw new WriterException("Directory does not exist: $pValue");
+        }
+
+        return $this;
+    }
+
+    /**
+     * Save Spreadsheet to PDF file, pre-save.
+     *
+     * @param string $pFilename Name of the file to save as
+     *
+     * @return resource
+     */
+    protected function prepareForSave($pFilename)
+    {
+        //  Open file
+        $this->openFileHandle($pFilename);
+
+        return $this->fileHandle;
+    }
+
+    /**
+     * Save PhpSpreadsheet to PDF file, post-save.
+     */
+    protected function restoreStateAfterSave(): void
+    {
+        $this->maybeCloseFileHandle();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Dompdf.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+use PhpOffice\PhpSpreadsheet\Worksheet\PageSetup;
+use PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+class Dompdf extends Pdf
+{
+    /**
+     * Gets the implementation of external PDF library that should be used.
+     *
+     * @return \Dompdf\Dompdf implementation
+     */
+    protected function createExternalWriterInstance()
+    {
+        return new \Dompdf\Dompdf();
+    }
+
+    /**
+     * Save Spreadsheet to file.
+     *
+     * @param string $pFilename Name of the file to save as
+     */
+    public function save($pFilename): void
+    {
+        $fileHandle = parent::prepareForSave($pFilename);
+
+        //  Default PDF paper size
+        $paperSize = 'LETTER'; //    Letter    (8.5 in. by 11 in.)
+
+        //  Check for paper size and page orientation
+        if ($this->getSheetIndex() === null) {
+            $orientation = ($this->spreadsheet->getSheet(0)->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet(0)->getPageSetup()->getPaperSize();
+        } else {
+            $orientation = ($this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getPaperSize();
+        }
+
+        $orientation = ($orientation == 'L') ? 'landscape' : 'portrait';
+
+        //  Override Page Orientation
+        if ($this->getOrientation() !== null) {
+            $orientation = ($this->getOrientation() == PageSetup::ORIENTATION_DEFAULT)
+                ? PageSetup::ORIENTATION_PORTRAIT
+                : $this->getOrientation();
+        }
+        //  Override Paper Size
+        if ($this->getPaperSize() !== null) {
+            $printPaperSize = $this->getPaperSize();
+        }
+
+        if (isset(self::$paperSizes[$printPaperSize])) {
+            $paperSize = self::$paperSizes[$printPaperSize];
+        }
+
+        //  Create PDF
+        $pdf = $this->createExternalWriterInstance();
+        $pdf->setPaper(strtolower($paperSize), $orientation);
+
+        $pdf->loadHtml($this->generateHTMLAll());
+        $pdf->render();
+
+        //  Write to file
+        fwrite($fileHandle, $pdf->output());
+
+        parent::restoreStateAfterSave();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Mpdf.php

@@ -0,0 +1,106 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+use PhpOffice\PhpSpreadsheet\Worksheet\PageSetup;
+use PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+class Mpdf extends Pdf
+{
+    /**
+     * Gets the implementation of external PDF library that should be used.
+     *
+     * @param array $config Configuration array
+     *
+     * @return \Mpdf\Mpdf implementation
+     */
+    protected function createExternalWriterInstance($config)
+    {
+        return new \Mpdf\Mpdf($config);
+    }
+
+    /**
+     * Save Spreadsheet to file.
+     *
+     * @param string $pFilename Name of the file to save as
+     */
+    public function save($pFilename): void
+    {
+        $fileHandle = parent::prepareForSave($pFilename);
+
+        //  Default PDF paper size
+        $paperSize = 'LETTER'; //    Letter    (8.5 in. by 11 in.)
+
+        //  Check for paper size and page orientation
+        if (null === $this->getSheetIndex()) {
+            $orientation = ($this->spreadsheet->getSheet(0)->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet(0)->getPageSetup()->getPaperSize();
+        } else {
+            $orientation = ($this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getPaperSize();
+        }
+        $this->setOrientation($orientation);
+
+        //  Override Page Orientation
+        if (null !== $this->getOrientation()) {
+            $orientation = ($this->getOrientation() == PageSetup::ORIENTATION_DEFAULT)
+                ? PageSetup::ORIENTATION_PORTRAIT
+                : $this->getOrientation();
+        }
+        $orientation = strtoupper($orientation);
+
+        //  Override Paper Size
+        if (null !== $this->getPaperSize()) {
+            $printPaperSize = $this->getPaperSize();
+        }
+
+        if (isset(self::$paperSizes[$printPaperSize])) {
+            $paperSize = self::$paperSizes[$printPaperSize];
+        }
+
+        //  Create PDF
+        $config = ['tempDir' => $this->tempDir . '/mpdf'];
+        $pdf = $this->createExternalWriterInstance($config);
+        $ortmp = $orientation;
+        $pdf->_setPageSize(strtoupper($paperSize), $ortmp);
+        $pdf->DefOrientation = $orientation;
+        $pdf->AddPageByArray([
+            'orientation' => $orientation,
+            'margin-left' => $this->inchesToMm($this->spreadsheet->getActiveSheet()->getPageMargins()->getLeft()),
+            'margin-right' => $this->inchesToMm($this->spreadsheet->getActiveSheet()->getPageMargins()->getRight()),
+            'margin-top' => $this->inchesToMm($this->spreadsheet->getActiveSheet()->getPageMargins()->getTop()),
+            'margin-bottom' => $this->inchesToMm($this->spreadsheet->getActiveSheet()->getPageMargins()->getBottom()),
+        ]);
+
+        //  Document info
+        $pdf->SetTitle($this->spreadsheet->getProperties()->getTitle());
+        $pdf->SetAuthor($this->spreadsheet->getProperties()->getCreator());
+        $pdf->SetSubject($this->spreadsheet->getProperties()->getSubject());
+        $pdf->SetKeywords($this->spreadsheet->getProperties()->getKeywords());
+        $pdf->SetCreator($this->spreadsheet->getProperties()->getCreator());
+
+        $html = $this->generateHTMLAll();
+        foreach (\array_chunk(\explode(PHP_EOL, $html), 1000) as $lines) {
+            $pdf->WriteHTML(\implode(PHP_EOL, $lines));
+        }
+
+        //  Write to file
+        fwrite($fileHandle, $pdf->Output('', 'S'));
+
+        parent::restoreStateAfterSave();
+    }
+
+    /**
+     * Convert inches to mm.
+     *
+     * @param float $inches
+     *
+     * @return float
+     */
+    private function inchesToMm($inches)
+    {
+        return $inches * 25.4;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Pdf/Tcpdf.php

@@ -0,0 +1,104 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\PageSetup;
+use PhpOffice\PhpSpreadsheet\Writer\Pdf;
+
+class Tcpdf extends Pdf
+{
+    /**
+     * Create a new PDF Writer instance.
+     *
+     * @param Spreadsheet $spreadsheet Spreadsheet object
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        parent::__construct($spreadsheet);
+        $this->setUseInlineCss(true);
+    }
+
+    /**
+     * Gets the implementation of external PDF library that should be used.
+     *
+     * @param string $orientation Page orientation
+     * @param string $unit Unit measure
+     * @param string $paperSize Paper size
+     *
+     * @return \TCPDF implementation
+     */
+    protected function createExternalWriterInstance($orientation, $unit, $paperSize)
+    {
+        return new \TCPDF($orientation, $unit, $paperSize);
+    }
+
+    /**
+     * Save Spreadsheet to file.
+     *
+     * @param string $pFilename Name of the file to save as
+     */
+    public function save($pFilename): void
+    {
+        $fileHandle = parent::prepareForSave($pFilename);
+
+        //  Default PDF paper size
+        $paperSize = 'LETTER'; //    Letter    (8.5 in. by 11 in.)
+
+        //  Check for paper size and page orientation
+        if ($this->getSheetIndex() === null) {
+            $orientation = ($this->spreadsheet->getSheet(0)->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet(0)->getPageSetup()->getPaperSize();
+            $printMargins = $this->spreadsheet->getSheet(0)->getPageMargins();
+        } else {
+            $orientation = ($this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getOrientation()
+                == PageSetup::ORIENTATION_LANDSCAPE) ? 'L' : 'P';
+            $printPaperSize = $this->spreadsheet->getSheet($this->getSheetIndex())->getPageSetup()->getPaperSize();
+            $printMargins = $this->spreadsheet->getSheet($this->getSheetIndex())->getPageMargins();
+        }
+
+        //  Override Page Orientation
+        if ($this->getOrientation() !== null) {
+            $orientation = ($this->getOrientation() == PageSetup::ORIENTATION_LANDSCAPE)
+                ? 'L'
+                : 'P';
+        }
+        //  Override Paper Size
+        if ($this->getPaperSize() !== null) {
+            $printPaperSize = $this->getPaperSize();
+        }
+
+        if (isset(self::$paperSizes[$printPaperSize])) {
+            $paperSize = self::$paperSizes[$printPaperSize];
+        }
+
+        //  Create PDF
+        $pdf = $this->createExternalWriterInstance($orientation, 'pt', $paperSize);
+        $pdf->setFontSubsetting(false);
+        //    Set margins, converting inches to points (using 72 dpi)
+        $pdf->SetMargins($printMargins->getLeft() * 72, $printMargins->getTop() * 72, $printMargins->getRight() * 72);
+        $pdf->SetAutoPageBreak(true, $printMargins->getBottom() * 72);
+
+        $pdf->setPrintHeader(false);
+        $pdf->setPrintFooter(false);
+
+        $pdf->AddPage();
+
+        //  Set the appropriate font
+        $pdf->SetFont($this->getFont());
+        $pdf->writeHTML($this->generateHTMLAll());
+
+        //  Document info
+        $pdf->SetTitle($this->spreadsheet->getProperties()->getTitle());
+        $pdf->SetAuthor($this->spreadsheet->getProperties()->getCreator());
+        $pdf->SetSubject($this->spreadsheet->getProperties()->getSubject());
+        $pdf->SetKeywords($this->spreadsheet->getProperties()->getKeywords());
+        $pdf->SetCreator($this->spreadsheet->getProperties()->getCreator());
+
+        //  Write to file
+        fwrite($fileHandle, $pdf->output($pFilename, 'S'));
+
+        parent::restoreStateAfterSave();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls.php

@@ -0,0 +1,901 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\Calculation\Functions;
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\RichText\RichText;
+use PhpOffice\PhpSpreadsheet\RichText\Run;
+use PhpOffice\PhpSpreadsheet\Shared\Drawing as SharedDrawing;
+use PhpOffice\PhpSpreadsheet\Shared\Escher;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer\SpContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE\Blip;
+use PhpOffice\PhpSpreadsheet\Shared\OLE;
+use PhpOffice\PhpSpreadsheet\Shared\OLE\PPS\File;
+use PhpOffice\PhpSpreadsheet\Shared\OLE\PPS\Root;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\BaseDrawing;
+use PhpOffice\PhpSpreadsheet\Worksheet\Drawing;
+use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
+
+class Xls extends BaseWriter
+{
+    /**
+     * PhpSpreadsheet object.
+     *
+     * @var Spreadsheet
+     */
+    private $spreadsheet;
+
+    /**
+     * Total number of shared strings in workbook.
+     *
+     * @var int
+     */
+    private $strTotal = 0;
+
+    /**
+     * Number of unique shared strings in workbook.
+     *
+     * @var int
+     */
+    private $strUnique = 0;
+
+    /**
+     * Array of unique shared strings in workbook.
+     *
+     * @var array
+     */
+    private $strTable = [];
+
+    /**
+     * Color cache. Mapping between RGB value and color index.
+     *
+     * @var array
+     */
+    private $colors;
+
+    /**
+     * Formula parser.
+     *
+     * @var \PhpOffice\PhpSpreadsheet\Writer\Xls\Parser
+     */
+    private $parser;
+
+    /**
+     * Identifier clusters for drawings. Used in MSODRAWINGGROUP record.
+     *
+     * @var array
+     */
+    private $IDCLs;
+
+    /**
+     * Basic OLE object summary information.
+     *
+     * @var array
+     */
+    private $summaryInformation;
+
+    /**
+     * Extended OLE object document summary information.
+     *
+     * @var array
+     */
+    private $documentSummaryInformation;
+
+    /**
+     * @var \PhpOffice\PhpSpreadsheet\Writer\Xls\Workbook
+     */
+    private $writerWorkbook;
+
+    /**
+     * @var \PhpOffice\PhpSpreadsheet\Writer\Xls\Worksheet[]
+     */
+    private $writerWorksheets;
+
+    /**
+     * Create a new Xls Writer.
+     *
+     * @param Spreadsheet $spreadsheet PhpSpreadsheet object
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        $this->spreadsheet = $spreadsheet;
+
+        $this->parser = new Xls\Parser($spreadsheet);
+    }
+
+    /**
+     * Save Spreadsheet to file.
+     *
+     * @param resource|string $pFilename
+     */
+    public function save($pFilename): void
+    {
+        // garbage collect
+        $this->spreadsheet->garbageCollect();
+
+        $saveDebugLog = Calculation::getInstance($this->spreadsheet)->getDebugLog()->getWriteDebugLog();
+        Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog(false);
+        $saveDateReturnType = Functions::getReturnDateType();
+        Functions::setReturnDateType(Functions::RETURNDATE_EXCEL);
+
+        // initialize colors array
+        $this->colors = [];
+
+        // Initialise workbook writer
+        $this->writerWorkbook = new Xls\Workbook($this->spreadsheet, $this->strTotal, $this->strUnique, $this->strTable, $this->colors, $this->parser);
+
+        // Initialise worksheet writers
+        $countSheets = $this->spreadsheet->getSheetCount();
+        for ($i = 0; $i < $countSheets; ++$i) {
+            $this->writerWorksheets[$i] = new Xls\Worksheet($this->strTotal, $this->strUnique, $this->strTable, $this->colors, $this->parser, $this->preCalculateFormulas, $this->spreadsheet->getSheet($i));
+        }
+
+        // build Escher objects. Escher objects for workbooks needs to be build before Escher object for workbook.
+        $this->buildWorksheetEschers();
+        $this->buildWorkbookEscher();
+
+        // add 15 identical cell style Xfs
+        // for now, we use the first cellXf instead of cellStyleXf
+        $cellXfCollection = $this->spreadsheet->getCellXfCollection();
+        for ($i = 0; $i < 15; ++$i) {
+            $this->writerWorkbook->addXfWriter($cellXfCollection[0], true);
+        }
+
+        // add all the cell Xfs
+        foreach ($this->spreadsheet->getCellXfCollection() as $style) {
+            $this->writerWorkbook->addXfWriter($style, false);
+        }
+
+        // add fonts from rich text eleemnts
+        for ($i = 0; $i < $countSheets; ++$i) {
+            foreach ($this->writerWorksheets[$i]->phpSheet->getCoordinates() as $coordinate) {
+                $cell = $this->writerWorksheets[$i]->phpSheet->getCell($coordinate);
+                $cVal = $cell->getValue();
+                if ($cVal instanceof RichText) {
+                    $elements = $cVal->getRichTextElements();
+                    foreach ($elements as $element) {
+                        if ($element instanceof Run) {
+                            $font = $element->getFont();
+                            $this->writerWorksheets[$i]->fontHashIndex[$font->getHashCode()] = $this->writerWorkbook->addFont($font);
+                        }
+                    }
+                }
+            }
+        }
+
+        // initialize OLE file
+        $workbookStreamName = 'Workbook';
+        $OLE = new File(OLE::ascToUcs($workbookStreamName));
+
+        // Write the worksheet streams before the global workbook stream,
+        // because the byte sizes of these are needed in the global workbook stream
+        $worksheetSizes = [];
+        for ($i = 0; $i < $countSheets; ++$i) {
+            $this->writerWorksheets[$i]->close();
+            $worksheetSizes[] = $this->writerWorksheets[$i]->_datasize;
+        }
+
+        // add binary data for global workbook stream
+        $OLE->append($this->writerWorkbook->writeWorkbook($worksheetSizes));
+
+        // add binary data for sheet streams
+        for ($i = 0; $i < $countSheets; ++$i) {
+            $OLE->append($this->writerWorksheets[$i]->getData());
+        }
+
+        $this->documentSummaryInformation = $this->writeDocumentSummaryInformation();
+        // initialize OLE Document Summary Information
+        if (isset($this->documentSummaryInformation) && !empty($this->documentSummaryInformation)) {
+            $OLE_DocumentSummaryInformation = new File(OLE::ascToUcs(chr(5) . 'DocumentSummaryInformation'));
+            $OLE_DocumentSummaryInformation->append($this->documentSummaryInformation);
+        }
+
+        $this->summaryInformation = $this->writeSummaryInformation();
+        // initialize OLE Summary Information
+        if (isset($this->summaryInformation) && !empty($this->summaryInformation)) {
+            $OLE_SummaryInformation = new File(OLE::ascToUcs(chr(5) . 'SummaryInformation'));
+            $OLE_SummaryInformation->append($this->summaryInformation);
+        }
+
+        // define OLE Parts
+        $arrRootData = [$OLE];
+        // initialize OLE Properties file
+        if (isset($OLE_SummaryInformation)) {
+            $arrRootData[] = $OLE_SummaryInformation;
+        }
+        // initialize OLE Extended Properties file
+        if (isset($OLE_DocumentSummaryInformation)) {
+            $arrRootData[] = $OLE_DocumentSummaryInformation;
+        }
+
+        $root = new Root(time(), time(), $arrRootData);
+        // save the OLE file
+        $this->openFileHandle($pFilename);
+        $root->save($this->fileHandle);
+        $this->maybeCloseFileHandle();
+
+        Functions::setReturnDateType($saveDateReturnType);
+        Calculation::getInstance($this->spreadsheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);
+    }
+
+    /**
+     * Build the Worksheet Escher objects.
+     */
+    private function buildWorksheetEschers(): void
+    {
+        // 1-based index to BstoreContainer
+        $blipIndex = 0;
+        $lastReducedSpId = 0;
+        $lastSpId = 0;
+
+        foreach ($this->spreadsheet->getAllsheets() as $sheet) {
+            // sheet index
+            $sheetIndex = $sheet->getParent()->getIndex($sheet);
+
+            $escher = null;
+
+            // check if there are any shapes for this sheet
+            $filterRange = $sheet->getAutoFilter()->getRange();
+            if (count($sheet->getDrawingCollection()) == 0 && empty($filterRange)) {
+                continue;
+            }
+
+            // create intermediate Escher object
+            $escher = new Escher();
+
+            // dgContainer
+            $dgContainer = new DgContainer();
+
+            // set the drawing index (we use sheet index + 1)
+            $dgId = $sheet->getParent()->getIndex($sheet) + 1;
+            $dgContainer->setDgId($dgId);
+            $escher->setDgContainer($dgContainer);
+
+            // spgrContainer
+            $spgrContainer = new SpgrContainer();
+            $dgContainer->setSpgrContainer($spgrContainer);
+
+            // add one shape which is the group shape
+            $spContainer = new SpContainer();
+            $spContainer->setSpgr(true);
+            $spContainer->setSpType(0);
+            $spContainer->setSpId(($sheet->getParent()->getIndex($sheet) + 1) << 10);
+            $spgrContainer->addChild($spContainer);
+
+            // add the shapes
+
+            $countShapes[$sheetIndex] = 0; // count number of shapes (minus group shape), in sheet
+
+            foreach ($sheet->getDrawingCollection() as $drawing) {
+                ++$blipIndex;
+
+                ++$countShapes[$sheetIndex];
+
+                // add the shape
+                $spContainer = new SpContainer();
+
+                // set the shape type
+                $spContainer->setSpType(0x004B);
+                // set the shape flag
+                $spContainer->setSpFlag(0x02);
+
+                // set the shape index (we combine 1-based sheet index and $countShapes to create unique shape index)
+                $reducedSpId = $countShapes[$sheetIndex];
+                $spId = $reducedSpId | ($sheet->getParent()->getIndex($sheet) + 1) << 10;
+                $spContainer->setSpId($spId);
+
+                // keep track of last reducedSpId
+                $lastReducedSpId = $reducedSpId;
+
+                // keep track of last spId
+                $lastSpId = $spId;
+
+                // set the BLIP index
+                $spContainer->setOPT(0x4104, $blipIndex);
+
+                // set coordinates and offsets, client anchor
+                $coordinates = $drawing->getCoordinates();
+                $offsetX = $drawing->getOffsetX();
+                $offsetY = $drawing->getOffsetY();
+                $width = $drawing->getWidth();
+                $height = $drawing->getHeight();
+
+                $twoAnchor = \PhpOffice\PhpSpreadsheet\Shared\Xls::oneAnchor2twoAnchor($sheet, $coordinates, $offsetX, $offsetY, $width, $height);
+
+                $spContainer->setStartCoordinates($twoAnchor['startCoordinates']);
+                $spContainer->setStartOffsetX($twoAnchor['startOffsetX']);
+                $spContainer->setStartOffsetY($twoAnchor['startOffsetY']);
+                $spContainer->setEndCoordinates($twoAnchor['endCoordinates']);
+                $spContainer->setEndOffsetX($twoAnchor['endOffsetX']);
+                $spContainer->setEndOffsetY($twoAnchor['endOffsetY']);
+
+                $spgrContainer->addChild($spContainer);
+            }
+
+            // AutoFilters
+            if (!empty($filterRange)) {
+                $rangeBounds = Coordinate::rangeBoundaries($filterRange);
+                $iNumColStart = $rangeBounds[0][0];
+                $iNumColEnd = $rangeBounds[1][0];
+
+                $iInc = $iNumColStart;
+                while ($iInc <= $iNumColEnd) {
+                    ++$countShapes[$sheetIndex];
+
+                    // create an Drawing Object for the dropdown
+                    $oDrawing = new BaseDrawing();
+                    // get the coordinates of drawing
+                    $cDrawing = Coordinate::stringFromColumnIndex($iInc) . $rangeBounds[0][1];
+                    $oDrawing->setCoordinates($cDrawing);
+                    $oDrawing->setWorksheet($sheet);
+
+                    // add the shape
+                    $spContainer = new SpContainer();
+                    // set the shape type
+                    $spContainer->setSpType(0x00C9);
+                    // set the shape flag
+                    $spContainer->setSpFlag(0x01);
+
+                    // set the shape index (we combine 1-based sheet index and $countShapes to create unique shape index)
+                    $reducedSpId = $countShapes[$sheetIndex];
+                    $spId = $reducedSpId | ($sheet->getParent()->getIndex($sheet) + 1) << 10;
+                    $spContainer->setSpId($spId);
+
+                    // keep track of last reducedSpId
+                    $lastReducedSpId = $reducedSpId;
+
+                    // keep track of last spId
+                    $lastSpId = $spId;
+
+                    $spContainer->setOPT(0x007F, 0x01040104); // Protection -> fLockAgainstGrouping
+                    $spContainer->setOPT(0x00BF, 0x00080008); // Text -> fFitTextToShape
+                    $spContainer->setOPT(0x01BF, 0x00010000); // Fill Style -> fNoFillHitTest
+                    $spContainer->setOPT(0x01FF, 0x00080000); // Line Style -> fNoLineDrawDash
+                    $spContainer->setOPT(0x03BF, 0x000A0000); // Group Shape -> fPrint
+
+                    // set coordinates and offsets, client anchor
+                    $endCoordinates = Coordinate::stringFromColumnIndex($iInc);
+                    $endCoordinates .= $rangeBounds[0][1] + 1;
+
+                    $spContainer->setStartCoordinates($cDrawing);
+                    $spContainer->setStartOffsetX(0);
+                    $spContainer->setStartOffsetY(0);
+                    $spContainer->setEndCoordinates($endCoordinates);
+                    $spContainer->setEndOffsetX(0);
+                    $spContainer->setEndOffsetY(0);
+
+                    $spgrContainer->addChild($spContainer);
+                    ++$iInc;
+                }
+            }
+
+            // identifier clusters, used for workbook Escher object
+            $this->IDCLs[$dgId] = $lastReducedSpId;
+
+            // set last shape index
+            $dgContainer->setLastSpId($lastSpId);
+
+            // set the Escher object
+            $this->writerWorksheets[$sheetIndex]->setEscher($escher);
+        }
+    }
+
+    private function processMemoryDrawing(BstoreContainer &$bstoreContainer, BaseDrawing $drawing, string $renderingFunctionx): void
+    {
+        switch ($renderingFunctionx) {
+            case MemoryDrawing::RENDERING_JPEG:
+                $blipType = BSE::BLIPTYPE_JPEG;
+                $renderingFunction = 'imagejpeg';
+
+                break;
+            default:
+                $blipType = BSE::BLIPTYPE_PNG;
+                $renderingFunction = 'imagepng';
+
+                break;
+        }
+
+        ob_start();
+        call_user_func($renderingFunction, $drawing->getImageResource());
+        $blipData = ob_get_contents();
+        ob_end_clean();
+
+        $blip = new Blip();
+        $blip->setData($blipData);
+
+        $BSE = new BSE();
+        $BSE->setBlipType($blipType);
+        $BSE->setBlip($blip);
+
+        $bstoreContainer->addBSE($BSE);
+    }
+
+    private function processDrawing(BstoreContainer &$bstoreContainer, BaseDrawing $drawing): void
+    {
+        $blipData = '';
+        $filename = $drawing->getPath();
+
+        [$imagesx, $imagesy, $imageFormat] = getimagesize($filename);
+
+        switch ($imageFormat) {
+            case 1: // GIF, not supported by BIFF8, we convert to PNG
+                $blipType = BSE::BLIPTYPE_PNG;
+                ob_start();
+                imagepng(imagecreatefromgif($filename));
+                $blipData = ob_get_contents();
+                ob_end_clean();
+
+                break;
+            case 2: // JPEG
+                $blipType = BSE::BLIPTYPE_JPEG;
+                $blipData = file_get_contents($filename);
+
+                break;
+            case 3: // PNG
+                $blipType = BSE::BLIPTYPE_PNG;
+                $blipData = file_get_contents($filename);
+
+                break;
+            case 6: // Windows DIB (BMP), we convert to PNG
+                $blipType = BSE::BLIPTYPE_PNG;
+                ob_start();
+                imagepng(SharedDrawing::imagecreatefrombmp($filename));
+                $blipData = ob_get_contents();
+                ob_end_clean();
+
+                break;
+        }
+        if ($blipData) {
+            $blip = new Blip();
+            $blip->setData($blipData);
+
+            $BSE = new BSE();
+            $BSE->setBlipType($blipType);
+            $BSE->setBlip($blip);
+
+            $bstoreContainer->addBSE($BSE);
+        }
+    }
+
+    private function processBaseDrawing(BstoreContainer &$bstoreContainer, BaseDrawing $drawing): void
+    {
+        if ($drawing instanceof Drawing) {
+            $this->processDrawing($bstoreContainer, $drawing);
+        } elseif ($drawing instanceof MemoryDrawing) {
+            $this->processMemoryDrawing($bstoreContainer, $drawing, $drawing->getRenderingFunction());
+        }
+    }
+
+    private function checkForDrawings(): bool
+    {
+        // any drawings in this workbook?
+        $found = false;
+        foreach ($this->spreadsheet->getAllSheets() as $sheet) {
+            if (count($sheet->getDrawingCollection()) > 0) {
+                $found = true;
+
+                break;
+            }
+        }
+
+        return $found;
+    }
+
+    /**
+     * Build the Escher object corresponding to the MSODRAWINGGROUP record.
+     */
+    private function buildWorkbookEscher(): void
+    {
+        // nothing to do if there are no drawings
+        if (!$this->checkForDrawings()) {
+            return;
+        }
+
+        // if we reach here, then there are drawings in the workbook
+        $escher = new Escher();
+
+        // dggContainer
+        $dggContainer = new DggContainer();
+        $escher->setDggContainer($dggContainer);
+
+        // set IDCLs (identifier clusters)
+        $dggContainer->setIDCLs($this->IDCLs);
+
+        // this loop is for determining maximum shape identifier of all drawing
+        $spIdMax = 0;
+        $totalCountShapes = 0;
+        $countDrawings = 0;
+
+        foreach ($this->spreadsheet->getAllsheets() as $sheet) {
+            $sheetCountShapes = 0; // count number of shapes (minus group shape), in sheet
+
+            $addCount = 0;
+            foreach ($sheet->getDrawingCollection() as $drawing) {
+                $addCount = 1;
+                ++$sheetCountShapes;
+                ++$totalCountShapes;
+
+                $spId = $sheetCountShapes | ($this->spreadsheet->getIndex($sheet) + 1) << 10;
+                $spIdMax = max($spId, $spIdMax);
+            }
+            $countDrawings += $addCount;
+        }
+
+        $dggContainer->setSpIdMax($spIdMax + 1);
+        $dggContainer->setCDgSaved($countDrawings);
+        $dggContainer->setCSpSaved($totalCountShapes + $countDrawings); // total number of shapes incl. one group shapes per drawing
+
+        // bstoreContainer
+        $bstoreContainer = new BstoreContainer();
+        $dggContainer->setBstoreContainer($bstoreContainer);
+
+        // the BSE's (all the images)
+        foreach ($this->spreadsheet->getAllsheets() as $sheet) {
+            foreach ($sheet->getDrawingCollection() as $drawing) {
+                $this->processBaseDrawing($bstoreContainer, $drawing);
+            }
+        }
+
+        // Set the Escher object
+        $this->writerWorkbook->setEscher($escher);
+    }
+
+    /**
+     * Build the OLE Part for DocumentSummary Information.
+     *
+     * @return string
+     */
+    private function writeDocumentSummaryInformation()
+    {
+        // offset: 0; size: 2; must be 0xFE 0xFF (UTF-16 LE byte order mark)
+        $data = pack('v', 0xFFFE);
+        // offset: 2; size: 2;
+        $data .= pack('v', 0x0000);
+        // offset: 4; size: 2; OS version
+        $data .= pack('v', 0x0106);
+        // offset: 6; size: 2; OS indicator
+        $data .= pack('v', 0x0002);
+        // offset: 8; size: 16
+        $data .= pack('VVVV', 0x00, 0x00, 0x00, 0x00);
+        // offset: 24; size: 4; section count
+        $data .= pack('V', 0x0001);
+
+        // offset: 28; size: 16; first section's class id: 02 d5 cd d5 9c 2e 1b 10 93 97 08 00 2b 2c f9 ae
+        $data .= pack('vvvvvvvv', 0xD502, 0xD5CD, 0x2E9C, 0x101B, 0x9793, 0x0008, 0x2C2B, 0xAEF9);
+        // offset: 44; size: 4; offset of the start
+        $data .= pack('V', 0x30);
+
+        // SECTION
+        $dataSection = [];
+        $dataSection_NumProps = 0;
+        $dataSection_Summary = '';
+        $dataSection_Content = '';
+
+        // GKPIDDSI_CODEPAGE: CodePage
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x01],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x02], // 2 byte signed integer
+            'data' => ['data' => 1252],
+        ];
+        ++$dataSection_NumProps;
+
+        // GKPIDDSI_CATEGORY : Category
+        $dataProp = $this->spreadsheet->getProperties()->getCategory();
+        if ($dataProp) {
+            $dataSection[] = [
+                'summary' => ['pack' => 'V', 'data' => 0x02],
+                'offset' => ['pack' => 'V'],
+                'type' => ['pack' => 'V', 'data' => 0x1E],
+                'data' => ['data' => $dataProp, 'length' => strlen($dataProp)],
+            ];
+            ++$dataSection_NumProps;
+        }
+        // GKPIDDSI_VERSION :Version of the application that wrote the property storage
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x17],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x03],
+            'data' => ['pack' => 'V', 'data' => 0x000C0000],
+        ];
+        ++$dataSection_NumProps;
+        // GKPIDDSI_SCALE : FALSE
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x0B],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x0B],
+            'data' => ['data' => false],
+        ];
+        ++$dataSection_NumProps;
+        // GKPIDDSI_LINKSDIRTY : True if any of the values for the linked properties have changed outside of the application
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x10],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x0B],
+            'data' => ['data' => false],
+        ];
+        ++$dataSection_NumProps;
+        // GKPIDDSI_SHAREDOC : FALSE
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x13],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x0B],
+            'data' => ['data' => false],
+        ];
+        ++$dataSection_NumProps;
+        // GKPIDDSI_HYPERLINKSCHANGED : True if any of the values for the _PID_LINKS (hyperlink text) have changed outside of the application
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x16],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x0B],
+            'data' => ['data' => false],
+        ];
+        ++$dataSection_NumProps;
+
+        // GKPIDDSI_DOCSPARTS
+        // MS-OSHARED p75 (2.3.3.2.2.1)
+        // Structure is VtVecUnalignedLpstrValue (2.3.3.1.9)
+        // cElements
+        $dataProp = pack('v', 0x0001);
+        $dataProp .= pack('v', 0x0000);
+        // array of UnalignedLpstr
+        // cch
+        $dataProp .= pack('v', 0x000A);
+        $dataProp .= pack('v', 0x0000);
+        // value
+        $dataProp .= 'Worksheet' . chr(0);
+
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x0D],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x101E],
+            'data' => ['data' => $dataProp, 'length' => strlen($dataProp)],
+        ];
+        ++$dataSection_NumProps;
+
+        // GKPIDDSI_HEADINGPAIR
+        // VtVecHeadingPairValue
+        // cElements
+        $dataProp = pack('v', 0x0002);
+        $dataProp .= pack('v', 0x0000);
+        // Array of vtHeadingPair
+        // vtUnalignedString - headingString
+        // stringType
+        $dataProp .= pack('v', 0x001E);
+        // padding
+        $dataProp .= pack('v', 0x0000);
+        // UnalignedLpstr
+        // cch
+        $dataProp .= pack('v', 0x0013);
+        $dataProp .= pack('v', 0x0000);
+        // value
+        $dataProp .= 'Feuilles de calcul';
+        // vtUnalignedString - headingParts
+        // wType : 0x0003 = 32 bit signed integer
+        $dataProp .= pack('v', 0x0300);
+        // padding
+        $dataProp .= pack('v', 0x0000);
+        // value
+        $dataProp .= pack('v', 0x0100);
+        $dataProp .= pack('v', 0x0000);
+        $dataProp .= pack('v', 0x0000);
+        $dataProp .= pack('v', 0x0000);
+
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x0C],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x100C],
+            'data' => ['data' => $dataProp, 'length' => strlen($dataProp)],
+        ];
+        ++$dataSection_NumProps;
+
+        //         4     Section Length
+        //        4     Property count
+        //        8 * $dataSection_NumProps (8 =  ID (4) + OffSet(4))
+        $dataSection_Content_Offset = 8 + $dataSection_NumProps * 8;
+        foreach ($dataSection as $dataProp) {
+            // Summary
+            $dataSection_Summary .= pack($dataProp['summary']['pack'], $dataProp['summary']['data']);
+            // Offset
+            $dataSection_Summary .= pack($dataProp['offset']['pack'], $dataSection_Content_Offset);
+            // DataType
+            $dataSection_Content .= pack($dataProp['type']['pack'], $dataProp['type']['data']);
+            // Data
+            if ($dataProp['type']['data'] == 0x02) { // 2 byte signed integer
+                $dataSection_Content .= pack('V', $dataProp['data']['data']);
+
+                $dataSection_Content_Offset += 4 + 4;
+            } elseif ($dataProp['type']['data'] == 0x03) { // 4 byte signed integer
+                $dataSection_Content .= pack('V', $dataProp['data']['data']);
+
+                $dataSection_Content_Offset += 4 + 4;
+            } elseif ($dataProp['type']['data'] == 0x0B) { // Boolean
+                $dataSection_Content .= pack('V', (int) $dataProp['data']['data']);
+                $dataSection_Content_Offset += 4 + 4;
+            } elseif ($dataProp['type']['data'] == 0x1E) { // null-terminated string prepended by dword string length
+                // Null-terminated string
+                $dataProp['data']['data'] .= chr(0);
+                ++$dataProp['data']['length'];
+                // Complete the string with null string for being a %4
+                $dataProp['data']['length'] = $dataProp['data']['length'] + ((4 - $dataProp['data']['length'] % 4) == 4 ? 0 : (4 - $dataProp['data']['length'] % 4));
+                $dataProp['data']['data'] = str_pad($dataProp['data']['data'], $dataProp['data']['length'], chr(0), STR_PAD_RIGHT);
+
+                $dataSection_Content .= pack('V', $dataProp['data']['length']);
+                $dataSection_Content .= $dataProp['data']['data'];
+
+                $dataSection_Content_Offset += 4 + 4 + strlen($dataProp['data']['data']);
+            // Condition below can never be true
+            //} elseif ($dataProp['type']['data'] == 0x40) { // Filetime (64-bit value representing the number of 100-nanosecond intervals since January 1, 1601)
+            //    $dataSection_Content .= $dataProp['data']['data'];
+
+            //    $dataSection_Content_Offset += 4 + 8;
+            } else {
+                $dataSection_Content .= $dataProp['data']['data'];
+
+                $dataSection_Content_Offset += 4 + $dataProp['data']['length'];
+            }
+        }
+        // Now $dataSection_Content_Offset contains the size of the content
+
+        // section header
+        // offset: $secOffset; size: 4; section length
+        //         + x  Size of the content (summary + content)
+        $data .= pack('V', $dataSection_Content_Offset);
+        // offset: $secOffset+4; size: 4; property count
+        $data .= pack('V', $dataSection_NumProps);
+        // Section Summary
+        $data .= $dataSection_Summary;
+        // Section Content
+        $data .= $dataSection_Content;
+
+        return $data;
+    }
+
+    private function writeSummaryPropOle(int $dataProp, int &$dataSection_NumProps, array &$dataSection, int $sumdata, int $typdata): void
+    {
+        if ($dataProp) {
+            $dataSection[] = [
+                'summary' => ['pack' => 'V', 'data' => $sumdata],
+                'offset' => ['pack' => 'V'],
+                'type' => ['pack' => 'V', 'data' => $typdata], // null-terminated string prepended by dword string length
+                'data' => ['data' => OLE::localDateToOLE($dataProp)],
+            ];
+            ++$dataSection_NumProps;
+        }
+    }
+
+    private function writeSummaryProp(string $dataProp, int &$dataSection_NumProps, array &$dataSection, int $sumdata, int $typdata): void
+    {
+        if ($dataProp) {
+            $dataSection[] = [
+                'summary' => ['pack' => 'V', 'data' => $sumdata],
+                'offset' => ['pack' => 'V'],
+                'type' => ['pack' => 'V', 'data' => $typdata], // null-terminated string prepended by dword string length
+                'data' => ['data' => $dataProp, 'length' => strlen($dataProp)],
+            ];
+            ++$dataSection_NumProps;
+        }
+    }
+
+    /**
+     * Build the OLE Part for Summary Information.
+     *
+     * @return string
+     */
+    private function writeSummaryInformation()
+    {
+        // offset: 0; size: 2; must be 0xFE 0xFF (UTF-16 LE byte order mark)
+        $data = pack('v', 0xFFFE);
+        // offset: 2; size: 2;
+        $data .= pack('v', 0x0000);
+        // offset: 4; size: 2; OS version
+        $data .= pack('v', 0x0106);
+        // offset: 6; size: 2; OS indicator
+        $data .= pack('v', 0x0002);
+        // offset: 8; size: 16
+        $data .= pack('VVVV', 0x00, 0x00, 0x00, 0x00);
+        // offset: 24; size: 4; section count
+        $data .= pack('V', 0x0001);
+
+        // offset: 28; size: 16; first section's class id: e0 85 9f f2 f9 4f 68 10 ab 91 08 00 2b 27 b3 d9
+        $data .= pack('vvvvvvvv', 0x85E0, 0xF29F, 0x4FF9, 0x1068, 0x91AB, 0x0008, 0x272B, 0xD9B3);
+        // offset: 44; size: 4; offset of the start
+        $data .= pack('V', 0x30);
+
+        // SECTION
+        $dataSection = [];
+        $dataSection_NumProps = 0;
+        $dataSection_Summary = '';
+        $dataSection_Content = '';
+
+        // CodePage : CP-1252
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x01],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x02], // 2 byte signed integer
+            'data' => ['data' => 1252],
+        ];
+        ++$dataSection_NumProps;
+
+        $props = $this->spreadsheet->getProperties();
+        $this->writeSummaryProp($props->getTitle(), $dataSection_NumProps, $dataSection, 0x02, 0x1e);
+        $this->writeSummaryProp($props->getSubject(), $dataSection_NumProps, $dataSection, 0x03, 0x1e);
+        $this->writeSummaryProp($props->getCreator(), $dataSection_NumProps, $dataSection, 0x04, 0x1e);
+        $this->writeSummaryProp($props->getKeywords(), $dataSection_NumProps, $dataSection, 0x05, 0x1e);
+        $this->writeSummaryProp($props->getDescription(), $dataSection_NumProps, $dataSection, 0x06, 0x1e);
+        $this->writeSummaryProp($props->getLastModifiedBy(), $dataSection_NumProps, $dataSection, 0x08, 0x1e);
+        $this->writeSummaryPropOle($props->getCreated(), $dataSection_NumProps, $dataSection, 0x0c, 0x40);
+        $this->writeSummaryPropOle($props->getModified(), $dataSection_NumProps, $dataSection, 0x0d, 0x40);
+
+        //    Security
+        $dataSection[] = [
+            'summary' => ['pack' => 'V', 'data' => 0x13],
+            'offset' => ['pack' => 'V'],
+            'type' => ['pack' => 'V', 'data' => 0x03], // 4 byte signed integer
+            'data' => ['data' => 0x00],
+        ];
+        ++$dataSection_NumProps;
+
+        //         4     Section Length
+        //        4     Property count
+        //        8 * $dataSection_NumProps (8 =  ID (4) + OffSet(4))
+        $dataSection_Content_Offset = 8 + $dataSection_NumProps * 8;
+        foreach ($dataSection as $dataProp) {
+            // Summary
+            $dataSection_Summary .= pack($dataProp['summary']['pack'], $dataProp['summary']['data']);
+            // Offset
+            $dataSection_Summary .= pack($dataProp['offset']['pack'], $dataSection_Content_Offset);
+            // DataType
+            $dataSection_Content .= pack($dataProp['type']['pack'], $dataProp['type']['data']);
+            // Data
+            if ($dataProp['type']['data'] == 0x02) { // 2 byte signed integer
+                $dataSection_Content .= pack('V', $dataProp['data']['data']);
+
+                $dataSection_Content_Offset += 4 + 4;
+            } elseif ($dataProp['type']['data'] == 0x03) { // 4 byte signed integer
+                $dataSection_Content .= pack('V', $dataProp['data']['data']);
+
+                $dataSection_Content_Offset += 4 + 4;
+            } elseif ($dataProp['type']['data'] == 0x1E) { // null-terminated string prepended by dword string length
+                // Null-terminated string
+                $dataProp['data']['data'] .= chr(0);
+                ++$dataProp['data']['length'];
+                // Complete the string with null string for being a %4
+                $dataProp['data']['length'] = $dataProp['data']['length'] + ((4 - $dataProp['data']['length'] % 4) == 4 ? 0 : (4 - $dataProp['data']['length'] % 4));
+                $dataProp['data']['data'] = str_pad($dataProp['data']['data'], $dataProp['data']['length'], chr(0), STR_PAD_RIGHT);
+
+                $dataSection_Content .= pack('V', $dataProp['data']['length']);
+                $dataSection_Content .= $dataProp['data']['data'];
+
+                $dataSection_Content_Offset += 4 + 4 + strlen($dataProp['data']['data']);
+            } elseif ($dataProp['type']['data'] == 0x40) { // Filetime (64-bit value representing the number of 100-nanosecond intervals since January 1, 1601)
+                $dataSection_Content .= $dataProp['data']['data'];
+
+                $dataSection_Content_Offset += 4 + 8;
+            }
+            // Data Type Not Used at the moment
+        }
+        // Now $dataSection_Content_Offset contains the size of the content
+
+        // section header
+        // offset: $secOffset; size: 4; section length
+        //         + x  Size of the content (summary + content)
+        $data .= pack('V', $dataSection_Content_Offset);
+        // offset: $secOffset+4; size: 4; property count
+        $data .= pack('V', $dataSection_NumProps);
+        // Section Summary
+        $data .= $dataSection_Summary;
+        // Section Content
+        $data .= $dataSection_Content;
+
+        return $data;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/BIFFwriter.php

@@ -0,0 +1,224 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
+
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+
+// Original file header of PEAR::Spreadsheet_Excel_Writer_BIFFwriter (used as the base for this class):
+// -----------------------------------------------------------------------------------------
+// *  Module written/ported by Xavier Noguer <xnoguer@rezebra.com>
+// *
+// *  The majority of this is _NOT_ my code.  I simply ported it from the
+// *  PERL Spreadsheet::WriteExcel module.
+// *
+// *  The author of the Spreadsheet::WriteExcel module is John McNamara
+// *  <jmcnamara@cpan.org>
+// *
+// *  I _DO_ maintain this code, and John McNamara has nothing to do with the
+// *  porting of this code to PHP.  Any questions directly related to this
+// *  class library should be directed to me.
+// *
+// *  License Information:
+// *
+// *    Spreadsheet_Excel_Writer:  A library for generating Excel Spreadsheets
+// *    Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com
+// *
+// *    This library is free software; you can redistribute it and/or
+// *    modify it under the terms of the GNU Lesser General Public
+// *    License as published by the Free Software Foundation; either
+// *    version 2.1 of the License, or (at your option) any later version.
+// *
+// *    This library is distributed in the hope that it will be useful,
+// *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+// *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// *    Lesser General Public License for more details.
+// *
+// *    You should have received a copy of the GNU Lesser General Public
+// *    License along with this library; if not, write to the Free Software
+// *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+// */
+class BIFFwriter
+{
+    /**
+     * The byte order of this architecture. 0 => little endian, 1 => big endian.
+     *
+     * @var int
+     */
+    private static $byteOrder;
+
+    /**
+     * The string containing the data of the BIFF stream.
+     *
+     * @var string
+     */
+    public $_data;
+
+    /**
+     * The size of the data in bytes. Should be the same as strlen($this->_data).
+     *
+     * @var int
+     */
+    public $_datasize;
+
+    /**
+     * The maximum length for a BIFF record (excluding record header and length field). See addContinue().
+     *
+     * @var int
+     *
+     * @see addContinue()
+     */
+    private $limit = 8224;
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        $this->_data = '';
+        $this->_datasize = 0;
+    }
+
+    /**
+     * Determine the byte order and store it as class data to avoid
+     * recalculating it for each call to new().
+     *
+     * @return int
+     */
+    public static function getByteOrder()
+    {
+        if (!isset(self::$byteOrder)) {
+            // Check if "pack" gives the required IEEE 64bit float
+            $teststr = pack('d', 1.2345);
+            $number = pack('C8', 0x8D, 0x97, 0x6E, 0x12, 0x83, 0xC0, 0xF3, 0x3F);
+            if ($number == $teststr) {
+                $byte_order = 0; // Little Endian
+            } elseif ($number == strrev($teststr)) {
+                $byte_order = 1; // Big Endian
+            } else {
+                // Give up. I'll fix this in a later version.
+                throw new WriterException('Required floating point format not supported on this platform.');
+            }
+            self::$byteOrder = $byte_order;
+        }
+
+        return self::$byteOrder;
+    }
+
+    /**
+     * General storage function.
+     *
+     * @param string $data binary data to append
+     */
+    protected function append($data): void
+    {
+        if (strlen($data) - 4 > $this->limit) {
+            $data = $this->addContinue($data);
+        }
+        $this->_data .= $data;
+        $this->_datasize += strlen($data);
+    }
+
+    /**
+     * General storage function like append, but returns string instead of modifying $this->_data.
+     *
+     * @param string $data binary data to write
+     *
+     * @return string
+     */
+    public function writeData($data)
+    {
+        if (strlen($data) - 4 > $this->limit) {
+            $data = $this->addContinue($data);
+        }
+        $this->_datasize += strlen($data);
+
+        return $data;
+    }
+
+    /**
+     * Writes Excel BOF record to indicate the beginning of a stream or
+     * sub-stream in the BIFF file.
+     *
+     * @param int $type type of BIFF file to write: 0x0005 Workbook,
+     *                       0x0010 Worksheet
+     */
+    protected function storeBof($type): void
+    {
+        $record = 0x0809; // Record identifier    (BIFF5-BIFF8)
+        $length = 0x0010;
+
+        // by inspection of real files, MS Office Excel 2007 writes the following
+        $unknown = pack('VV', 0x000100D1, 0x00000406);
+
+        $build = 0x0DBB; //    Excel 97
+        $year = 0x07CC; //    Excel 97
+
+        $version = 0x0600; //    BIFF8
+
+        $header = pack('vv', $record, $length);
+        $data = pack('vvvv', $version, $type, $build, $year);
+        $this->append($header . $data . $unknown);
+    }
+
+    /**
+     * Writes Excel EOF record to indicate the end of a BIFF stream.
+     */
+    protected function storeEof(): void
+    {
+        $record = 0x000A; // Record identifier
+        $length = 0x0000; // Number of bytes to follow
+
+        $header = pack('vv', $record, $length);
+        $this->append($header);
+    }
+
+    /**
+     * Writes Excel EOF record to indicate the end of a BIFF stream.
+     */
+    public function writeEof()
+    {
+        $record = 0x000A; // Record identifier
+        $length = 0x0000; // Number of bytes to follow
+        $header = pack('vv', $record, $length);
+
+        return $this->writeData($header);
+    }
+
+    /**
+     * Excel limits the size of BIFF records. In Excel 5 the limit is 2084 bytes. In
+     * Excel 97 the limit is 8228 bytes. Records that are longer than these limits
+     * must be split up into CONTINUE blocks.
+     *
+     * This function takes a long BIFF record and inserts CONTINUE records as
+     * necessary.
+     *
+     * @param string $data The original binary data to be written
+     *
+     * @return string A very convenient string of continue blocks
+     */
+    private function addContinue($data)
+    {
+        $limit = $this->limit;
+        $record = 0x003C; // Record identifier
+
+        // The first 2080/8224 bytes remain intact. However, we have to change
+        // the length field of the record.
+        $tmp = substr($data, 0, 2) . pack('v', $limit) . substr($data, 4, $limit);
+
+        $header = pack('vv', $record, $limit); // Headers for continue records
+
+        // Retrieve chunks of 2080/8224 bytes +4 for the header.
+        $data_length = strlen($data);
+        for ($i = $limit + 4; $i < ($data_length - $limit); $i += $limit) {
+            $tmp .= $header;
+            $tmp .= substr($data, $i, $limit);
+        }
+
+        // Retrieve the last chunk of data
+        $header = pack('vv', $record, strlen($data) - $i);
+        $tmp .= $header;
+        $tmp .= substr($data, $i);
+
+        return $tmp;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/Escher.php

@@ -0,0 +1,510 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
+
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer\SpContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE;
+use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE\Blip;
+
+class Escher
+{
+    /**
+     * The object we are writing.
+     */
+    private $object;
+
+    /**
+     * The written binary data.
+     */
+    private $data;
+
+    /**
+     * Shape offsets. Positions in binary stream where a new shape record begins.
+     *
+     * @var array
+     */
+    private $spOffsets;
+
+    /**
+     * Shape types.
+     *
+     * @var array
+     */
+    private $spTypes;
+
+    /**
+     * Constructor.
+     *
+     * @param mixed $object
+     */
+    public function __construct($object)
+    {
+        $this->object = $object;
+    }
+
+    /**
+     * Process the object to be written.
+     *
+     * @return string
+     */
+    public function close()
+    {
+        // initialize
+        $this->data = '';
+
+        switch (get_class($this->object)) {
+            case \PhpOffice\PhpSpreadsheet\Shared\Escher::class:
+                if ($dggContainer = $this->object->getDggContainer()) {
+                    $writer = new self($dggContainer);
+                    $this->data = $writer->close();
+                } elseif ($dgContainer = $this->object->getDgContainer()) {
+                    $writer = new self($dgContainer);
+                    $this->data = $writer->close();
+                    $this->spOffsets = $writer->getSpOffsets();
+                    $this->spTypes = $writer->getSpTypes();
+                }
+
+                break;
+            case DggContainer::class:
+                // this is a container record
+
+                // initialize
+                $innerData = '';
+
+                // write the dgg
+                $recVer = 0x0;
+                $recInstance = 0x0000;
+                $recType = 0xF006;
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                // dgg data
+                $dggData =
+                    pack(
+                        'VVVV',
+                        $this->object->getSpIdMax(), // maximum shape identifier increased by one
+                        $this->object->getCDgSaved() + 1, // number of file identifier clusters increased by one
+                        $this->object->getCSpSaved(),
+                        $this->object->getCDgSaved() // count total number of drawings saved
+                    );
+
+                // add file identifier clusters (one per drawing)
+                $IDCLs = $this->object->getIDCLs();
+
+                foreach ($IDCLs as $dgId => $maxReducedSpId) {
+                    $dggData .= pack('VV', $dgId, $maxReducedSpId + 1);
+                }
+
+                $header = pack('vvV', $recVerInstance, $recType, strlen($dggData));
+                $innerData .= $header . $dggData;
+
+                // write the bstoreContainer
+                if ($bstoreContainer = $this->object->getBstoreContainer()) {
+                    $writer = new self($bstoreContainer);
+                    $innerData .= $writer->close();
+                }
+
+                // write the record
+                $recVer = 0xF;
+                $recInstance = 0x0000;
+                $recType = 0xF000;
+                $length = strlen($innerData);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header . $innerData;
+
+                break;
+            case BstoreContainer::class:
+                // this is a container record
+
+                // initialize
+                $innerData = '';
+
+                // treat the inner data
+                if ($BSECollection = $this->object->getBSECollection()) {
+                    foreach ($BSECollection as $BSE) {
+                        $writer = new self($BSE);
+                        $innerData .= $writer->close();
+                    }
+                }
+
+                // write the record
+                $recVer = 0xF;
+                $recInstance = count($this->object->getBSECollection());
+                $recType = 0xF001;
+                $length = strlen($innerData);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header . $innerData;
+
+                break;
+            case BSE::class:
+                // this is a semi-container record
+
+                // initialize
+                $innerData = '';
+
+                // here we treat the inner data
+                if ($blip = $this->object->getBlip()) {
+                    $writer = new self($blip);
+                    $innerData .= $writer->close();
+                }
+
+                // initialize
+                $data = '';
+
+                $btWin32 = $this->object->getBlipType();
+                $btMacOS = $this->object->getBlipType();
+                $data .= pack('CC', $btWin32, $btMacOS);
+
+                $rgbUid = pack('VVVV', 0, 0, 0, 0); // todo
+                $data .= $rgbUid;
+
+                $tag = 0;
+                $size = strlen($innerData);
+                $cRef = 1;
+                $foDelay = 0; //todo
+                $unused1 = 0x0;
+                $cbName = 0x0;
+                $unused2 = 0x0;
+                $unused3 = 0x0;
+                $data .= pack('vVVVCCCC', $tag, $size, $cRef, $foDelay, $unused1, $cbName, $unused2, $unused3);
+
+                $data .= $innerData;
+
+                // write the record
+                $recVer = 0x2;
+                $recInstance = $this->object->getBlipType();
+                $recType = 0xF007;
+                $length = strlen($data);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header;
+
+                $this->data .= $data;
+
+                break;
+            case Blip::class:
+                // this is an atom record
+
+                // write the record
+                switch ($this->object->getParent()->getBlipType()) {
+                    case BSE::BLIPTYPE_JPEG:
+                        // initialize
+                        $innerData = '';
+
+                        $rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
+                        $innerData .= $rgbUid1;
+
+                        $tag = 0xFF; // todo
+                        $innerData .= pack('C', $tag);
+
+                        $innerData .= $this->object->getData();
+
+                        $recVer = 0x0;
+                        $recInstance = 0x46A;
+                        $recType = 0xF01D;
+                        $length = strlen($innerData);
+
+                        $recVerInstance = $recVer;
+                        $recVerInstance |= $recInstance << 4;
+
+                        $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                        $this->data = $header;
+
+                        $this->data .= $innerData;
+
+                        break;
+                    case BSE::BLIPTYPE_PNG:
+                        // initialize
+                        $innerData = '';
+
+                        $rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
+                        $innerData .= $rgbUid1;
+
+                        $tag = 0xFF; // todo
+                        $innerData .= pack('C', $tag);
+
+                        $innerData .= $this->object->getData();
+
+                        $recVer = 0x0;
+                        $recInstance = 0x6E0;
+                        $recType = 0xF01E;
+                        $length = strlen($innerData);
+
+                        $recVerInstance = $recVer;
+                        $recVerInstance |= $recInstance << 4;
+
+                        $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                        $this->data = $header;
+
+                        $this->data .= $innerData;
+
+                        break;
+                }
+
+                break;
+            case DgContainer::class:
+                // this is a container record
+
+                // initialize
+                $innerData = '';
+
+                // write the dg
+                $recVer = 0x0;
+                $recInstance = $this->object->getDgId();
+                $recType = 0xF008;
+                $length = 8;
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                // number of shapes in this drawing (including group shape)
+                $countShapes = count($this->object->getSpgrContainer()->getChildren());
+                $innerData .= $header . pack('VV', $countShapes, $this->object->getLastSpId());
+
+                // write the spgrContainer
+                if ($spgrContainer = $this->object->getSpgrContainer()) {
+                    $writer = new self($spgrContainer);
+                    $innerData .= $writer->close();
+
+                    // get the shape offsets relative to the spgrContainer record
+                    $spOffsets = $writer->getSpOffsets();
+                    $spTypes = $writer->getSpTypes();
+
+                    // save the shape offsets relative to dgContainer
+                    foreach ($spOffsets as &$spOffset) {
+                        $spOffset += 24; // add length of dgContainer header data (8 bytes) plus dg data (16 bytes)
+                    }
+
+                    $this->spOffsets = $spOffsets;
+                    $this->spTypes = $spTypes;
+                }
+
+                // write the record
+                $recVer = 0xF;
+                $recInstance = 0x0000;
+                $recType = 0xF002;
+                $length = strlen($innerData);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header . $innerData;
+
+                break;
+            case SpgrContainer::class:
+                // this is a container record
+
+                // initialize
+                $innerData = '';
+
+                // initialize spape offsets
+                $totalSize = 8;
+                $spOffsets = [];
+                $spTypes = [];
+
+                // treat the inner data
+                foreach ($this->object->getChildren() as $spContainer) {
+                    $writer = new self($spContainer);
+                    $spData = $writer->close();
+                    $innerData .= $spData;
+
+                    // save the shape offsets (where new shape records begin)
+                    $totalSize += strlen($spData);
+                    $spOffsets[] = $totalSize;
+
+                    $spTypes = array_merge($spTypes, $writer->getSpTypes());
+                }
+
+                // write the record
+                $recVer = 0xF;
+                $recInstance = 0x0000;
+                $recType = 0xF003;
+                $length = strlen($innerData);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header . $innerData;
+                $this->spOffsets = $spOffsets;
+                $this->spTypes = $spTypes;
+
+                break;
+            case SpContainer::class:
+                // initialize
+                $data = '';
+
+                // build the data
+
+                // write group shape record, if necessary?
+                if ($this->object->getSpgr()) {
+                    $recVer = 0x1;
+                    $recInstance = 0x0000;
+                    $recType = 0xF009;
+                    $length = 0x00000010;
+
+                    $recVerInstance = $recVer;
+                    $recVerInstance |= $recInstance << 4;
+
+                    $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                    $data .= $header . pack('VVVV', 0, 0, 0, 0);
+                }
+                $this->spTypes[] = ($this->object->getSpType());
+
+                // write the shape record
+                $recVer = 0x2;
+                $recInstance = $this->object->getSpType(); // shape type
+                $recType = 0xF00A;
+                $length = 0x00000008;
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $data .= $header . pack('VV', $this->object->getSpId(), $this->object->getSpgr() ? 0x0005 : 0x0A00);
+
+                // the options
+                if ($this->object->getOPTCollection()) {
+                    $optData = '';
+
+                    $recVer = 0x3;
+                    $recInstance = count($this->object->getOPTCollection());
+                    $recType = 0xF00B;
+                    foreach ($this->object->getOPTCollection() as $property => $value) {
+                        $optData .= pack('vV', $property, $value);
+                    }
+                    $length = strlen($optData);
+
+                    $recVerInstance = $recVer;
+                    $recVerInstance |= $recInstance << 4;
+
+                    $header = pack('vvV', $recVerInstance, $recType, $length);
+                    $data .= $header . $optData;
+                }
+
+                // the client anchor
+                if ($this->object->getStartCoordinates()) {
+                    $clientAnchorData = '';
+
+                    $recVer = 0x0;
+                    $recInstance = 0x0;
+                    $recType = 0xF010;
+
+                    // start coordinates
+                    [$column, $row] = Coordinate::coordinateFromString($this->object->getStartCoordinates());
+                    $c1 = Coordinate::columnIndexFromString($column) - 1;
+                    $r1 = $row - 1;
+
+                    // start offsetX
+                    $startOffsetX = $this->object->getStartOffsetX();
+
+                    // start offsetY
+                    $startOffsetY = $this->object->getStartOffsetY();
+
+                    // end coordinates
+                    [$column, $row] = Coordinate::coordinateFromString($this->object->getEndCoordinates());
+                    $c2 = Coordinate::columnIndexFromString($column) - 1;
+                    $r2 = $row - 1;
+
+                    // end offsetX
+                    $endOffsetX = $this->object->getEndOffsetX();
+
+                    // end offsetY
+                    $endOffsetY = $this->object->getEndOffsetY();
+
+                    $clientAnchorData = pack('vvvvvvvvv', $this->object->getSpFlag(), $c1, $startOffsetX, $r1, $startOffsetY, $c2, $endOffsetX, $r2, $endOffsetY);
+
+                    $length = strlen($clientAnchorData);
+
+                    $recVerInstance = $recVer;
+                    $recVerInstance |= $recInstance << 4;
+
+                    $header = pack('vvV', $recVerInstance, $recType, $length);
+                    $data .= $header . $clientAnchorData;
+                }
+
+                // the client data, just empty for now
+                if (!$this->object->getSpgr()) {
+                    $clientDataData = '';
+
+                    $recVer = 0x0;
+                    $recInstance = 0x0;
+                    $recType = 0xF011;
+
+                    $length = strlen($clientDataData);
+
+                    $recVerInstance = $recVer;
+                    $recVerInstance |= $recInstance << 4;
+
+                    $header = pack('vvV', $recVerInstance, $recType, $length);
+                    $data .= $header . $clientDataData;
+                }
+
+                // write the record
+                $recVer = 0xF;
+                $recInstance = 0x0000;
+                $recType = 0xF004;
+                $length = strlen($data);
+
+                $recVerInstance = $recVer;
+                $recVerInstance |= $recInstance << 4;
+
+                $header = pack('vvV', $recVerInstance, $recType, $length);
+
+                $this->data = $header . $data;
+
+                break;
+        }
+
+        return $this->data;
+    }
+
+    /**
+     * Gets the shape offsets.
+     *
+     * @return array
+     */
+    public function getSpOffsets()
+    {
+        return $this->spOffsets;
+    }
+
+    /**
+     * Gets the shape types.
+     *
+     * @return array
+     */
+    public function getSpTypes()
+    {
+        return $this->spTypes;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/Font.php

@@ -0,0 +1,147 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
+
+use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+
+class Font
+{
+    /**
+     * Color index.
+     *
+     * @var int
+     */
+    private $colorIndex;
+
+    /**
+     * Font.
+     *
+     * @var \PhpOffice\PhpSpreadsheet\Style\Font
+     */
+    private $font;
+
+    /**
+     * Constructor.
+     */
+    public function __construct(\PhpOffice\PhpSpreadsheet\Style\Font $font)
+    {
+        $this->colorIndex = 0x7FFF;
+        $this->font = $font;
+    }
+
+    /**
+     * Set the color index.
+     *
+     * @param int $colorIndex
+     */
+    public function setColorIndex($colorIndex): void
+    {
+        $this->colorIndex = $colorIndex;
+    }
+
+    /**
+     * Get font record data.
+     *
+     * @return string
+     */
+    public function writeFont()
+    {
+        $font_outline = 0;
+        $font_shadow = 0;
+
+        $icv = $this->colorIndex; // Index to color palette
+        if ($this->font->getSuperscript()) {
+            $sss = 1;
+        } elseif ($this->font->getSubscript()) {
+            $sss = 2;
+        } else {
+            $sss = 0;
+        }
+        $bFamily = 0; // Font family
+        $bCharSet = \PhpOffice\PhpSpreadsheet\Shared\Font::getCharsetFromFontName($this->font->getName()); // Character set
+
+        $record = 0x31; // Record identifier
+        $reserved = 0x00; // Reserved
+        $grbit = 0x00; // Font attributes
+        if ($this->font->getItalic()) {
+            $grbit |= 0x02;
+        }
+        if ($this->font->getStrikethrough()) {
+            $grbit |= 0x08;
+        }
+        if ($font_outline) {
+            $grbit |= 0x10;
+        }
+        if ($font_shadow) {
+            $grbit |= 0x20;
+        }
+
+        $data = pack(
+            'vvvvvCCCC',
+            // Fontsize (in twips)
+            $this->font->getSize() * 20,
+            $grbit,
+            // Colour
+            $icv,
+            // Font weight
+            self::mapBold($this->font->getBold()),
+            // Superscript/Subscript
+            $sss,
+            self::mapUnderline($this->font->getUnderline()),
+            $bFamily,
+            $bCharSet,
+            $reserved
+        );
+        $data .= StringHelper::UTF8toBIFF8UnicodeShort($this->font->getName());
+
+        $length = strlen($data);
+        $header = pack('vv', $record, $length);
+
+        return $header . $data;
+    }
+
+    /**
+     * Map to BIFF5-BIFF8 codes for bold.
+     *
+     * @param bool $bold
+     *
+     * @return int
+     */
+    private static function mapBold($bold)
+    {
+        if ($bold) {
+            return 0x2BC; //  700 = Bold font weight
+        }
+
+        return 0x190; //  400 = Normal font weight
+    }
+
+    /**
+     * Map of BIFF2-BIFF8 codes for underline styles.
+     *
+     * @var array of int
+     */
+    private static $mapUnderline = [
+        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_NONE => 0x00,
+        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_SINGLE => 0x01,
+        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_DOUBLE => 0x02,
+        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_SINGLEACCOUNTING => 0x21,
+        \PhpOffice\PhpSpreadsheet\Style\Font::UNDERLINE_DOUBLEACCOUNTING => 0x22,
+    ];
+
+    /**
+     * Map underline.
+     *
+     * @param string $underline
+     *
+     * @return int
+     */
+    private static function mapUnderline($underline)
+    {
+        if (isset(self::$mapUnderline[$underline])) {
+            return self::$mapUnderline[$underline];
+        }
+
+        return 0x00;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/Xf.php

@@ -0,0 +1,548 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
+
+use PhpOffice\PhpSpreadsheet\Style\Alignment;
+use PhpOffice\PhpSpreadsheet\Style\Border;
+use PhpOffice\PhpSpreadsheet\Style\Borders;
+use PhpOffice\PhpSpreadsheet\Style\Fill;
+use PhpOffice\PhpSpreadsheet\Style\Protection;
+use PhpOffice\PhpSpreadsheet\Style\Style;
+
+// Original file header of PEAR::Spreadsheet_Excel_Writer_Format (used as the base for this class):
+// -----------------------------------------------------------------------------------------
+// /*
+// *  Module written/ported by Xavier Noguer <xnoguer@rezebra.com>
+// *
+// *  The majority of this is _NOT_ my code.  I simply ported it from the
+// *  PERL Spreadsheet::WriteExcel module.
+// *
+// *  The author of the Spreadsheet::WriteExcel module is John McNamara
+// *  <jmcnamara@cpan.org>
+// *
+// *  I _DO_ maintain this code, and John McNamara has nothing to do with the
+// *  porting of this code to PHP.  Any questions directly related to this
+// *  class library should be directed to me.
+// *
+// *  License Information:
+// *
+// *    Spreadsheet_Excel_Writer:  A library for generating Excel Spreadsheets
+// *    Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com
+// *
+// *    This library is free software; you can redistribute it and/or
+// *    modify it under the terms of the GNU Lesser General Public
+// *    License as published by the Free Software Foundation; either
+// *    version 2.1 of the License, or (at your option) any later version.
+// *
+// *    This library is distributed in the hope that it will be useful,
+// *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+// *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// *    Lesser General Public License for more details.
+// *
+// *    You should have received a copy of the GNU Lesser General Public
+// *    License along with this library; if not, write to the Free Software
+// *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+// */
+class Xf
+{
+    /**
+     * Style XF or a cell XF ?
+     *
+     * @var bool
+     */
+    private $isStyleXf;
+
+    /**
+     * Index to the FONT record. Index 4 does not exist.
+     *
+     * @var int
+     */
+    private $fontIndex;
+
+    /**
+     * An index (2 bytes) to a FORMAT record (number format).
+     *
+     * @var int
+     */
+    private $numberFormatIndex;
+
+    /**
+     * 1 bit, apparently not used.
+     *
+     * @var int
+     */
+    private $textJustLast;
+
+    /**
+     * The cell's foreground color.
+     *
+     * @var int
+     */
+    private $foregroundColor;
+
+    /**
+     * The cell's background color.
+     *
+     * @var int
+     */
+    private $backgroundColor;
+
+    /**
+     * Color of the bottom border of the cell.
+     *
+     * @var int
+     */
+    private $bottomBorderColor;
+
+    /**
+     * Color of the top border of the cell.
+     *
+     * @var int
+     */
+    private $topBorderColor;
+
+    /**
+     * Color of the left border of the cell.
+     *
+     * @var int
+     */
+    private $leftBorderColor;
+
+    /**
+     * Color of the right border of the cell.
+     *
+     * @var int
+     */
+    private $rightBorderColor;
+
+    /**
+     * Constructor.
+     *
+     * @param Style $style The XF format
+     */
+    public function __construct(Style $style)
+    {
+        $this->isStyleXf = false;
+        $this->fontIndex = 0;
+
+        $this->numberFormatIndex = 0;
+
+        $this->textJustLast = 0;
+
+        $this->foregroundColor = 0x40;
+        $this->backgroundColor = 0x41;
+
+        $this->_diag = 0;
+
+        $this->bottomBorderColor = 0x40;
+        $this->topBorderColor = 0x40;
+        $this->leftBorderColor = 0x40;
+        $this->rightBorderColor = 0x40;
+        $this->_diag_color = 0x40;
+        $this->_style = $style;
+    }
+
+    /**
+     * Generate an Excel BIFF XF record (style or cell).
+     *
+     * @return string The XF record
+     */
+    public function writeXf()
+    {
+        // Set the type of the XF record and some of the attributes.
+        if ($this->isStyleXf) {
+            $style = 0xFFF5;
+        } else {
+            $style = self::mapLocked($this->_style->getProtection()->getLocked());
+            $style |= self::mapHidden($this->_style->getProtection()->getHidden()) << 1;
+        }
+
+        // Flags to indicate if attributes have been set.
+        $atr_num = ($this->numberFormatIndex != 0) ? 1 : 0;
+        $atr_fnt = ($this->fontIndex != 0) ? 1 : 0;
+        $atr_alc = ((int) $this->_style->getAlignment()->getWrapText()) ? 1 : 0;
+        $atr_bdr = (self::mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle()) ||
+                        self::mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle()) ||
+                        self::mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle()) ||
+                        self::mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle())) ? 1 : 0;
+        $atr_pat = (($this->foregroundColor != 0x40) ||
+                        ($this->backgroundColor != 0x41) ||
+                        self::mapFillType($this->_style->getFill()->getFillType())) ? 1 : 0;
+        $atr_prot = self::mapLocked($this->_style->getProtection()->getLocked())
+                        | self::mapHidden($this->_style->getProtection()->getHidden());
+
+        // Zero the default border colour if the border has not been set.
+        if (self::mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle()) == 0) {
+            $this->bottomBorderColor = 0;
+        }
+        if (self::mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle()) == 0) {
+            $this->topBorderColor = 0;
+        }
+        if (self::mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle()) == 0) {
+            $this->rightBorderColor = 0;
+        }
+        if (self::mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle()) == 0) {
+            $this->leftBorderColor = 0;
+        }
+        if (self::mapBorderStyle($this->_style->getBorders()->getDiagonal()->getBorderStyle()) == 0) {
+            $this->_diag_color = 0;
+        }
+
+        $record = 0x00E0; // Record identifier
+        $length = 0x0014; // Number of bytes to follow
+
+        $ifnt = $this->fontIndex; // Index to FONT record
+        $ifmt = $this->numberFormatIndex; // Index to FORMAT record
+
+        $align = $this->mapHAlign($this->_style->getAlignment()->getHorizontal()); // Alignment
+        $align |= (int) $this->_style->getAlignment()->getWrapText() << 3;
+        $align |= self::mapVAlign($this->_style->getAlignment()->getVertical()) << 4;
+        $align |= $this->textJustLast << 7;
+
+        $used_attrib = $atr_num << 2;
+        $used_attrib |= $atr_fnt << 3;
+        $used_attrib |= $atr_alc << 4;
+        $used_attrib |= $atr_bdr << 5;
+        $used_attrib |= $atr_pat << 6;
+        $used_attrib |= $atr_prot << 7;
+
+        $icv = $this->foregroundColor; // fg and bg pattern colors
+        $icv |= $this->backgroundColor << 7;
+
+        $border1 = self::mapBorderStyle($this->_style->getBorders()->getLeft()->getBorderStyle()); // Border line style and color
+        $border1 |= self::mapBorderStyle($this->_style->getBorders()->getRight()->getBorderStyle()) << 4;
+        $border1 |= self::mapBorderStyle($this->_style->getBorders()->getTop()->getBorderStyle()) << 8;
+        $border1 |= self::mapBorderStyle($this->_style->getBorders()->getBottom()->getBorderStyle()) << 12;
+        $border1 |= $this->leftBorderColor << 16;
+        $border1 |= $this->rightBorderColor << 23;
+
+        $diagonalDirection = $this->_style->getBorders()->getDiagonalDirection();
+        $diag_tl_to_rb = $diagonalDirection == Borders::DIAGONAL_BOTH
+                            || $diagonalDirection == Borders::DIAGONAL_DOWN;
+        $diag_tr_to_lb = $diagonalDirection == Borders::DIAGONAL_BOTH
+                            || $diagonalDirection == Borders::DIAGONAL_UP;
+        $border1 |= $diag_tl_to_rb << 30;
+        $border1 |= $diag_tr_to_lb << 31;
+
+        $border2 = $this->topBorderColor; // Border color
+        $border2 |= $this->bottomBorderColor << 7;
+        $border2 |= $this->_diag_color << 14;
+        $border2 |= self::mapBorderStyle($this->_style->getBorders()->getDiagonal()->getBorderStyle()) << 21;
+        $border2 |= self::mapFillType($this->_style->getFill()->getFillType()) << 26;
+
+        $header = pack('vv', $record, $length);
+
+        //BIFF8 options: identation, shrinkToFit and  text direction
+        $biff8_options = $this->_style->getAlignment()->getIndent();
+        $biff8_options |= (int) $this->_style->getAlignment()->getShrinkToFit() << 4;
+
+        $data = pack('vvvC', $ifnt, $ifmt, $style, $align);
+        $data .= pack('CCC', self::mapTextRotation($this->_style->getAlignment()->getTextRotation()), $biff8_options, $used_attrib);
+        $data .= pack('VVv', $border1, $border2, $icv);
+
+        return $header . $data;
+    }
+
+    /**
+     * Is this a style XF ?
+     *
+     * @param bool $value
+     */
+    public function setIsStyleXf($value): void
+    {
+        $this->isStyleXf = $value;
+    }
+
+    /**
+     * Sets the cell's bottom border color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setBottomColor($colorIndex): void
+    {
+        $this->bottomBorderColor = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's top border color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setTopColor($colorIndex): void
+    {
+        $this->topBorderColor = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's left border color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setLeftColor($colorIndex): void
+    {
+        $this->leftBorderColor = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's right border color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setRightColor($colorIndex): void
+    {
+        $this->rightBorderColor = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's diagonal border color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setDiagColor($colorIndex): void
+    {
+        $this->_diag_color = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's foreground color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setFgColor($colorIndex): void
+    {
+        $this->foregroundColor = $colorIndex;
+    }
+
+    /**
+     * Sets the cell's background color.
+     *
+     * @param int $colorIndex Color index
+     */
+    public function setBgColor($colorIndex): void
+    {
+        $this->backgroundColor = $colorIndex;
+    }
+
+    /**
+     * Sets the index to the number format record
+     * It can be date, time, currency, etc...
+     *
+     * @param int $numberFormatIndex Index to format record
+     */
+    public function setNumberFormatIndex($numberFormatIndex): void
+    {
+        $this->numberFormatIndex = $numberFormatIndex;
+    }
+
+    /**
+     * Set the font index.
+     *
+     * @param int $value Font index, note that value 4 does not exist
+     */
+    public function setFontIndex($value): void
+    {
+        $this->fontIndex = $value;
+    }
+
+    /**
+     * Map of BIFF2-BIFF8 codes for border styles.
+     *
+     * @var array of int
+     */
+    private static $mapBorderStyles = [
+        Border::BORDER_NONE => 0x00,
+        Border::BORDER_THIN => 0x01,
+        Border::BORDER_MEDIUM => 0x02,
+        Border::BORDER_DASHED => 0x03,
+        Border::BORDER_DOTTED => 0x04,
+        Border::BORDER_THICK => 0x05,
+        Border::BORDER_DOUBLE => 0x06,
+        Border::BORDER_HAIR => 0x07,
+        Border::BORDER_MEDIUMDASHED => 0x08,
+        Border::BORDER_DASHDOT => 0x09,
+        Border::BORDER_MEDIUMDASHDOT => 0x0A,
+        Border::BORDER_DASHDOTDOT => 0x0B,
+        Border::BORDER_MEDIUMDASHDOTDOT => 0x0C,
+        Border::BORDER_SLANTDASHDOT => 0x0D,
+    ];
+
+    /**
+     * Map border style.
+     *
+     * @param string $borderStyle
+     *
+     * @return int
+     */
+    private static function mapBorderStyle($borderStyle)
+    {
+        if (isset(self::$mapBorderStyles[$borderStyle])) {
+            return self::$mapBorderStyles[$borderStyle];
+        }
+
+        return 0x00;
+    }
+
+    /**
+     * Map of BIFF2-BIFF8 codes for fill types.
+     *
+     * @var array of int
+     */
+    private static $mapFillTypes = [
+        Fill::FILL_NONE => 0x00,
+        Fill::FILL_SOLID => 0x01,
+        Fill::FILL_PATTERN_MEDIUMGRAY => 0x02,
+        Fill::FILL_PATTERN_DARKGRAY => 0x03,
+        Fill::FILL_PATTERN_LIGHTGRAY => 0x04,
+        Fill::FILL_PATTERN_DARKHORIZONTAL => 0x05,
+        Fill::FILL_PATTERN_DARKVERTICAL => 0x06,
+        Fill::FILL_PATTERN_DARKDOWN => 0x07,
+        Fill::FILL_PATTERN_DARKUP => 0x08,
+        Fill::FILL_PATTERN_DARKGRID => 0x09,
+        Fill::FILL_PATTERN_DARKTRELLIS => 0x0A,
+        Fill::FILL_PATTERN_LIGHTHORIZONTAL => 0x0B,
+        Fill::FILL_PATTERN_LIGHTVERTICAL => 0x0C,
+        Fill::FILL_PATTERN_LIGHTDOWN => 0x0D,
+        Fill::FILL_PATTERN_LIGHTUP => 0x0E,
+        Fill::FILL_PATTERN_LIGHTGRID => 0x0F,
+        Fill::FILL_PATTERN_LIGHTTRELLIS => 0x10,
+        Fill::FILL_PATTERN_GRAY125 => 0x11,
+        Fill::FILL_PATTERN_GRAY0625 => 0x12,
+        Fill::FILL_GRADIENT_LINEAR => 0x00, // does not exist in BIFF8
+        Fill::FILL_GRADIENT_PATH => 0x00, // does not exist in BIFF8
+    ];
+
+    /**
+     * Map fill type.
+     *
+     * @param string $fillType
+     *
+     * @return int
+     */
+    private static function mapFillType($fillType)
+    {
+        if (isset(self::$mapFillTypes[$fillType])) {
+            return self::$mapFillTypes[$fillType];
+        }
+
+        return 0x00;
+    }
+
+    /**
+     * Map of BIFF2-BIFF8 codes for horizontal alignment.
+     *
+     * @var array of int
+     */
+    private static $mapHAlignments = [
+        Alignment::HORIZONTAL_GENERAL => 0,
+        Alignment::HORIZONTAL_LEFT => 1,
+        Alignment::HORIZONTAL_CENTER => 2,
+        Alignment::HORIZONTAL_RIGHT => 3,
+        Alignment::HORIZONTAL_FILL => 4,
+        Alignment::HORIZONTAL_JUSTIFY => 5,
+        Alignment::HORIZONTAL_CENTER_CONTINUOUS => 6,
+    ];
+
+    /**
+     * Map to BIFF2-BIFF8 codes for horizontal alignment.
+     *
+     * @param string $hAlign
+     *
+     * @return int
+     */
+    private function mapHAlign($hAlign)
+    {
+        if (isset(self::$mapHAlignments[$hAlign])) {
+            return self::$mapHAlignments[$hAlign];
+        }
+
+        return 0;
+    }
+
+    /**
+     * Map of BIFF2-BIFF8 codes for vertical alignment.
+     *
+     * @var array of int
+     */
+    private static $mapVAlignments = [
+        Alignment::VERTICAL_TOP => 0,
+        Alignment::VERTICAL_CENTER => 1,
+        Alignment::VERTICAL_BOTTOM => 2,
+        Alignment::VERTICAL_JUSTIFY => 3,
+    ];
+
+    /**
+     * Map to BIFF2-BIFF8 codes for vertical alignment.
+     *
+     * @param string $vAlign
+     *
+     * @return int
+     */
+    private static function mapVAlign($vAlign)
+    {
+        if (isset(self::$mapVAlignments[$vAlign])) {
+            return self::$mapVAlignments[$vAlign];
+        }
+
+        return 2;
+    }
+
+    /**
+     * Map to BIFF8 codes for text rotation angle.
+     *
+     * @param int $textRotation
+     *
+     * @return int
+     */
+    private static function mapTextRotation($textRotation)
+    {
+        if ($textRotation >= 0) {
+            return $textRotation;
+        } elseif ($textRotation == -165) {
+            return 255;
+        } elseif ($textRotation < 0) {
+            return 90 - $textRotation;
+        }
+    }
+
+    /**
+     * Map locked.
+     *
+     * @param string $locked
+     *
+     * @return int
+     */
+    private static function mapLocked($locked)
+    {
+        switch ($locked) {
+            case Protection::PROTECTION_INHERIT:
+                return 1;
+            case Protection::PROTECTION_PROTECTED:
+                return 1;
+            case Protection::PROTECTION_UNPROTECTED:
+                return 0;
+            default:
+                return 1;
+        }
+    }
+
+    /**
+     * Map hidden.
+     *
+     * @param string $hidden
+     *
+     * @return int
+     */
+    private static function mapHidden($hidden)
+    {
+        switch ($hidden) {
+            case Protection::PROTECTION_INHERIT:
+                return 0;
+            case Protection::PROTECTION_PROTECTED:
+                return 1;
+            case Protection::PROTECTION_UNPROTECTED:
+                return 0;
+            default:
+                return 0;
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx.php

@@ -0,0 +1,548 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\Calculation\Functions;
+use PhpOffice\PhpSpreadsheet\HashTable;
+use PhpOffice\PhpSpreadsheet\Shared\File;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\Drawing as WorksheetDrawing;
+use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Chart;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Comments;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\ContentTypes;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\DocProps;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Drawing;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Rels;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\RelsRibbon;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\RelsVBA;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\StringTable;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Style;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Theme;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Workbook;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\Worksheet;
+use ZipArchive;
+use ZipStream\Exception\OverflowException;
+use ZipStream\Option\Archive;
+use ZipStream\ZipStream;
+
+class Xlsx extends BaseWriter
+{
+    /**
+     * Office2003 compatibility.
+     *
+     * @var bool
+     */
+    private $office2003compatibility = false;
+
+    /**
+     * Private writer parts.
+     *
+     * @var Xlsx\WriterPart[]
+     */
+    private $writerParts = [];
+
+    /**
+     * Private Spreadsheet.
+     *
+     * @var Spreadsheet
+     */
+    private $spreadSheet;
+
+    /**
+     * Private string table.
+     *
+     * @var string[]
+     */
+    private $stringTable = [];
+
+    /**
+     * Private unique Conditional HashTable.
+     *
+     * @var HashTable
+     */
+    private $stylesConditionalHashTable;
+
+    /**
+     * Private unique Style HashTable.
+     *
+     * @var HashTable
+     */
+    private $styleHashTable;
+
+    /**
+     * Private unique Fill HashTable.
+     *
+     * @var HashTable
+     */
+    private $fillHashTable;
+
+    /**
+     * Private unique \PhpOffice\PhpSpreadsheet\Style\Font HashTable.
+     *
+     * @var HashTable
+     */
+    private $fontHashTable;
+
+    /**
+     * Private unique Borders HashTable.
+     *
+     * @var HashTable
+     */
+    private $bordersHashTable;
+
+    /**
+     * Private unique NumberFormat HashTable.
+     *
+     * @var HashTable
+     */
+    private $numFmtHashTable;
+
+    /**
+     * Private unique \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet\BaseDrawing HashTable.
+     *
+     * @var HashTable
+     */
+    private $drawingHashTable;
+
+    /**
+     * Private handle for zip stream.
+     *
+     * @var ZipStream
+     */
+    private $zip;
+
+    /**
+     * Create a new Xlsx Writer.
+     */
+    public function __construct(Spreadsheet $spreadsheet)
+    {
+        // Assign PhpSpreadsheet
+        $this->setSpreadsheet($spreadsheet);
+
+        $writerPartsArray = [
+            'stringtable' => StringTable::class,
+            'contenttypes' => ContentTypes::class,
+            'docprops' => DocProps::class,
+            'rels' => Rels::class,
+            'theme' => Theme::class,
+            'style' => Style::class,
+            'workbook' => Workbook::class,
+            'worksheet' => Worksheet::class,
+            'drawing' => Drawing::class,
+            'comments' => Comments::class,
+            'chart' => Chart::class,
+            'relsvba' => RelsVBA::class,
+            'relsribbonobjects' => RelsRibbon::class,
+        ];
+
+        //    Initialise writer parts
+        //        and Assign their parent IWriters
+        foreach ($writerPartsArray as $writer => $class) {
+            $this->writerParts[$writer] = new $class($this);
+        }
+
+        $hashTablesArray = ['stylesConditionalHashTable', 'fillHashTable', 'fontHashTable',
+            'bordersHashTable', 'numFmtHashTable', 'drawingHashTable',
+            'styleHashTable',
+        ];
+
+        // Set HashTable variables
+        foreach ($hashTablesArray as $tableName) {
+            $this->$tableName = new HashTable();
+        }
+    }
+
+    /**
+     * Get writer part.
+     *
+     * @param string $pPartName Writer part name
+     *
+     * @return \PhpOffice\PhpSpreadsheet\Writer\Xlsx\WriterPart
+     */
+    public function getWriterPart($pPartName)
+    {
+        if ($pPartName != '' && isset($this->writerParts[strtolower($pPartName)])) {
+            return $this->writerParts[strtolower($pPartName)];
+        }
+
+        return null;
+    }
+
+    /**
+     * Save PhpSpreadsheet to file.
+     *
+     * @param resource|string $pFilename
+     */
+    public function save($pFilename): void
+    {
+        // garbage collect
+        $this->pathNames = [];
+        $this->spreadSheet->garbageCollect();
+
+        $this->openFileHandle($pFilename);
+
+        $saveDebugLog = Calculation::getInstance($this->spreadSheet)->getDebugLog()->getWriteDebugLog();
+        Calculation::getInstance($this->spreadSheet)->getDebugLog()->setWriteDebugLog(false);
+        $saveDateReturnType = Functions::getReturnDateType();
+        Functions::setReturnDateType(Functions::RETURNDATE_EXCEL);
+
+        // Create string lookup table
+        $this->stringTable = [];
+        for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
+            $this->stringTable = $this->getWriterPart('StringTable')->createStringTable($this->spreadSheet->getSheet($i), $this->stringTable);
+        }
+
+        // Create styles dictionaries
+        $this->styleHashTable->addFromSource($this->getWriterPart('Style')->allStyles($this->spreadSheet));
+        $this->stylesConditionalHashTable->addFromSource($this->getWriterPart('Style')->allConditionalStyles($this->spreadSheet));
+        $this->fillHashTable->addFromSource($this->getWriterPart('Style')->allFills($this->spreadSheet));
+        $this->fontHashTable->addFromSource($this->getWriterPart('Style')->allFonts($this->spreadSheet));
+        $this->bordersHashTable->addFromSource($this->getWriterPart('Style')->allBorders($this->spreadSheet));
+        $this->numFmtHashTable->addFromSource($this->getWriterPart('Style')->allNumberFormats($this->spreadSheet));
+
+        // Create drawing dictionary
+        $this->drawingHashTable->addFromSource($this->getWriterPart('Drawing')->allDrawings($this->spreadSheet));
+
+        $options = new Archive();
+        $options->setEnableZip64(false);
+        $options->setOutputStream($this->fileHandle);
+
+        $this->zip = new ZipStream(null, $options);
+
+        // Add [Content_Types].xml to ZIP file
+        $this->addZipFile('[Content_Types].xml', $this->getWriterPart('ContentTypes')->writeContentTypes($this->spreadSheet, $this->includeCharts));
+
+        //if hasMacros, add the vbaProject.bin file, Certificate file(if exists)
+        if ($this->spreadSheet->hasMacros()) {
+            $macrosCode = $this->spreadSheet->getMacrosCode();
+            if ($macrosCode !== null) {
+                // we have the code ?
+                $this->addZipFile('xl/vbaProject.bin', $macrosCode); //allways in 'xl', allways named vbaProject.bin
+                if ($this->spreadSheet->hasMacrosCertificate()) {
+                    //signed macros ?
+                    // Yes : add the certificate file and the related rels file
+                    $this->addZipFile('xl/vbaProjectSignature.bin', $this->spreadSheet->getMacrosCertificate());
+                    $this->addZipFile('xl/_rels/vbaProject.bin.rels', $this->getWriterPart('RelsVBA')->writeVBARelationships($this->spreadSheet));
+                }
+            }
+        }
+        //a custom UI in this workbook ? add it ("base" xml and additional objects (pictures) and rels)
+        if ($this->spreadSheet->hasRibbon()) {
+            $tmpRibbonTarget = $this->spreadSheet->getRibbonXMLData('target');
+            $this->addZipFile($tmpRibbonTarget, $this->spreadSheet->getRibbonXMLData('data'));
+            if ($this->spreadSheet->hasRibbonBinObjects()) {
+                $tmpRootPath = dirname($tmpRibbonTarget) . '/';
+                $ribbonBinObjects = $this->spreadSheet->getRibbonBinObjects('data'); //the files to write
+                foreach ($ribbonBinObjects as $aPath => $aContent) {
+                    $this->addZipFile($tmpRootPath . $aPath, $aContent);
+                }
+                //the rels for files
+                $this->addZipFile($tmpRootPath . '_rels/' . basename($tmpRibbonTarget) . '.rels', $this->getWriterPart('RelsRibbonObjects')->writeRibbonRelationships($this->spreadSheet));
+            }
+        }
+
+        // Add relationships to ZIP file
+        $this->addZipFile('_rels/.rels', $this->getWriterPart('Rels')->writeRelationships($this->spreadSheet));
+        $this->addZipFile('xl/_rels/workbook.xml.rels', $this->getWriterPart('Rels')->writeWorkbookRelationships($this->spreadSheet));
+
+        // Add document properties to ZIP file
+        $this->addZipFile('docProps/app.xml', $this->getWriterPart('DocProps')->writeDocPropsApp($this->spreadSheet));
+        $this->addZipFile('docProps/core.xml', $this->getWriterPart('DocProps')->writeDocPropsCore($this->spreadSheet));
+        $customPropertiesPart = $this->getWriterPart('DocProps')->writeDocPropsCustom($this->spreadSheet);
+        if ($customPropertiesPart !== null) {
+            $this->addZipFile('docProps/custom.xml', $customPropertiesPart);
+        }
+
+        // Add theme to ZIP file
+        $this->addZipFile('xl/theme/theme1.xml', $this->getWriterPart('Theme')->writeTheme($this->spreadSheet));
+
+        // Add string table to ZIP file
+        $this->addZipFile('xl/sharedStrings.xml', $this->getWriterPart('StringTable')->writeStringTable($this->stringTable));
+
+        // Add styles to ZIP file
+        $this->addZipFile('xl/styles.xml', $this->getWriterPart('Style')->writeStyles($this->spreadSheet));
+
+        // Add workbook to ZIP file
+        $this->addZipFile('xl/workbook.xml', $this->getWriterPart('Workbook')->writeWorkbook($this->spreadSheet, $this->preCalculateFormulas));
+
+        $chartCount = 0;
+        // Add worksheets
+        for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
+            $this->addZipFile('xl/worksheets/sheet' . ($i + 1) . '.xml', $this->getWriterPart('Worksheet')->writeWorksheet($this->spreadSheet->getSheet($i), $this->stringTable, $this->includeCharts));
+            if ($this->includeCharts) {
+                $charts = $this->spreadSheet->getSheet($i)->getChartCollection();
+                if (count($charts) > 0) {
+                    foreach ($charts as $chart) {
+                        $this->addZipFile('xl/charts/chart' . ($chartCount + 1) . '.xml', $this->getWriterPart('Chart')->writeChart($chart, $this->preCalculateFormulas));
+                        ++$chartCount;
+                    }
+                }
+            }
+        }
+
+        $chartRef1 = 0;
+        // Add worksheet relationships (drawings, ...)
+        for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
+            // Add relationships
+            $this->addZipFile('xl/worksheets/_rels/sheet' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')->writeWorksheetRelationships($this->spreadSheet->getSheet($i), ($i + 1), $this->includeCharts));
+
+            // Add unparsedLoadedData
+            $sheetCodeName = $this->spreadSheet->getSheet($i)->getCodeName();
+            $unparsedLoadedData = $this->spreadSheet->getUnparsedLoadedData();
+            if (isset($unparsedLoadedData['sheets'][$sheetCodeName]['ctrlProps'])) {
+                foreach ($unparsedLoadedData['sheets'][$sheetCodeName]['ctrlProps'] as $ctrlProp) {
+                    $this->addZipFile($ctrlProp['filePath'], $ctrlProp['content']);
+                }
+            }
+            if (isset($unparsedLoadedData['sheets'][$sheetCodeName]['printerSettings'])) {
+                foreach ($unparsedLoadedData['sheets'][$sheetCodeName]['printerSettings'] as $ctrlProp) {
+                    $this->addZipFile($ctrlProp['filePath'], $ctrlProp['content']);
+                }
+            }
+
+            $drawings = $this->spreadSheet->getSheet($i)->getDrawingCollection();
+            $drawingCount = count($drawings);
+            if ($this->includeCharts) {
+                $chartCount = $this->spreadSheet->getSheet($i)->getChartCount();
+            }
+
+            // Add drawing and image relationship parts
+            if (($drawingCount > 0) || ($chartCount > 0)) {
+                // Drawing relationships
+                $this->addZipFile('xl/drawings/_rels/drawing' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')->writeDrawingRelationships($this->spreadSheet->getSheet($i), $chartRef1, $this->includeCharts));
+
+                // Drawings
+                $this->addZipFile('xl/drawings/drawing' . ($i + 1) . '.xml', $this->getWriterPart('Drawing')->writeDrawings($this->spreadSheet->getSheet($i), $this->includeCharts));
+            } elseif (isset($unparsedLoadedData['sheets'][$sheetCodeName]['drawingAlternateContents'])) {
+                // Drawings
+                $this->addZipFile('xl/drawings/drawing' . ($i + 1) . '.xml', $this->getWriterPart('Drawing')->writeDrawings($this->spreadSheet->getSheet($i), $this->includeCharts));
+            }
+
+            // Add unparsed drawings
+            if (isset($unparsedLoadedData['sheets'][$sheetCodeName]['Drawings'])) {
+                foreach ($unparsedLoadedData['sheets'][$sheetCodeName]['Drawings'] as $relId => $drawingXml) {
+                    $drawingFile = array_search($relId, $unparsedLoadedData['sheets'][$sheetCodeName]['drawingOriginalIds']);
+                    if ($drawingFile !== false) {
+                        $drawingFile = ltrim($drawingFile, '.');
+                        $this->addZipFile('xl' . $drawingFile, $drawingXml);
+                    }
+                }
+            }
+
+            // Add comment relationship parts
+            if (count($this->spreadSheet->getSheet($i)->getComments()) > 0) {
+                // VML Comments
+                $this->addZipFile('xl/drawings/vmlDrawing' . ($i + 1) . '.vml', $this->getWriterPart('Comments')->writeVMLComments($this->spreadSheet->getSheet($i)));
+
+                // Comments
+                $this->addZipFile('xl/comments' . ($i + 1) . '.xml', $this->getWriterPart('Comments')->writeComments($this->spreadSheet->getSheet($i)));
+            }
+
+            // Add unparsed relationship parts
+            if (isset($unparsedLoadedData['sheets'][$sheetCodeName]['vmlDrawings'])) {
+                foreach ($unparsedLoadedData['sheets'][$sheetCodeName]['vmlDrawings'] as $vmlDrawing) {
+                    $this->addZipFile($vmlDrawing['filePath'], $vmlDrawing['content']);
+                }
+            }
+
+            // Add header/footer relationship parts
+            if (count($this->spreadSheet->getSheet($i)->getHeaderFooter()->getImages()) > 0) {
+                // VML Drawings
+                $this->addZipFile('xl/drawings/vmlDrawingHF' . ($i + 1) . '.vml', $this->getWriterPart('Drawing')->writeVMLHeaderFooterImages($this->spreadSheet->getSheet($i)));
+
+                // VML Drawing relationships
+                $this->addZipFile('xl/drawings/_rels/vmlDrawingHF' . ($i + 1) . '.vml.rels', $this->getWriterPart('Rels')->writeHeaderFooterDrawingRelationships($this->spreadSheet->getSheet($i)));
+
+                // Media
+                foreach ($this->spreadSheet->getSheet($i)->getHeaderFooter()->getImages() as $image) {
+                    $this->addZipFile('xl/media/' . $image->getIndexedFilename(), file_get_contents($image->getPath()));
+                }
+            }
+        }
+
+        // Add media
+        for ($i = 0; $i < $this->getDrawingHashTable()->count(); ++$i) {
+            if ($this->getDrawingHashTable()->getByIndex($i) instanceof WorksheetDrawing) {
+                $imageContents = null;
+                $imagePath = $this->getDrawingHashTable()->getByIndex($i)->getPath();
+                if (strpos($imagePath, 'zip://') !== false) {
+                    $imagePath = substr($imagePath, 6);
+                    $imagePathSplitted = explode('#', $imagePath);
+
+                    $imageZip = new ZipArchive();
+                    $imageZip->open($imagePathSplitted[0]);
+                    $imageContents = $imageZip->getFromName($imagePathSplitted[1]);
+                    $imageZip->close();
+                    unset($imageZip);
+                } else {
+                    $imageContents = file_get_contents($imagePath);
+                }
+
+                $this->addZipFile('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
+            } elseif ($this->getDrawingHashTable()->getByIndex($i) instanceof MemoryDrawing) {
+                ob_start();
+                call_user_func(
+                    $this->getDrawingHashTable()->getByIndex($i)->getRenderingFunction(),
+                    $this->getDrawingHashTable()->getByIndex($i)->getImageResource()
+                );
+                $imageContents = ob_get_contents();
+                ob_end_clean();
+
+                $this->addZipFile('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
+            }
+        }
+
+        Functions::setReturnDateType($saveDateReturnType);
+        Calculation::getInstance($this->spreadSheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);
+
+        // Close file
+        try {
+            $this->zip->finish();
+        } catch (OverflowException $e) {
+            throw new WriterException('Could not close resource.');
+        }
+
+        $this->maybeCloseFileHandle();
+    }
+
+    /**
+     * Get Spreadsheet object.
+     *
+     * @return Spreadsheet
+     */
+    public function getSpreadsheet()
+    {
+        return $this->spreadSheet;
+    }
+
+    /**
+     * Set Spreadsheet object.
+     *
+     * @param Spreadsheet $spreadsheet PhpSpreadsheet object
+     *
+     * @return $this
+     */
+    public function setSpreadsheet(Spreadsheet $spreadsheet)
+    {
+        $this->spreadSheet = $spreadsheet;
+
+        return $this;
+    }
+
+    /**
+     * Get string table.
+     *
+     * @return string[]
+     */
+    public function getStringTable()
+    {
+        return $this->stringTable;
+    }
+
+    /**
+     * Get Style HashTable.
+     *
+     * @return HashTable
+     */
+    public function getStyleHashTable()
+    {
+        return $this->styleHashTable;
+    }
+
+    /**
+     * Get Conditional HashTable.
+     *
+     * @return HashTable
+     */
+    public function getStylesConditionalHashTable()
+    {
+        return $this->stylesConditionalHashTable;
+    }
+
+    /**
+     * Get Fill HashTable.
+     *
+     * @return HashTable
+     */
+    public function getFillHashTable()
+    {
+        return $this->fillHashTable;
+    }
+
+    /**
+     * Get \PhpOffice\PhpSpreadsheet\Style\Font HashTable.
+     *
+     * @return HashTable
+     */
+    public function getFontHashTable()
+    {
+        return $this->fontHashTable;
+    }
+
+    /**
+     * Get Borders HashTable.
+     *
+     * @return HashTable
+     */
+    public function getBordersHashTable()
+    {
+        return $this->bordersHashTable;
+    }
+
+    /**
+     * Get NumberFormat HashTable.
+     *
+     * @return HashTable
+     */
+    public function getNumFmtHashTable()
+    {
+        return $this->numFmtHashTable;
+    }
+
+    /**
+     * Get \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet\BaseDrawing HashTable.
+     *
+     * @return HashTable
+     */
+    public function getDrawingHashTable()
+    {
+        return $this->drawingHashTable;
+    }
+
+    /**
+     * Get Office2003 compatibility.
+     *
+     * @return bool
+     */
+    public function getOffice2003Compatibility()
+    {
+        return $this->office2003compatibility;
+    }
+
+    /**
+     * Set Office2003 compatibility.
+     *
+     * @param bool $pValue Office2003 compatibility?
+     *
+     * @return $this
+     */
+    public function setOffice2003Compatibility($pValue)
+    {
+        $this->office2003compatibility = $pValue;
+
+        return $this;
+    }
+
+    private $pathNames = [];
+
+    private function addZipFile(string $path, string $content): void
+    {
+        if (!in_array($path, $this->pathNames)) {
+            $this->pathNames[] = $path;
+            $this->zip->addFile($path, $content);
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Comments.php

@@ -0,0 +1,232 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\Comment;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+
+class Comments extends WriterPart
+{
+    /**
+     * Write comments to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeComments(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Comments cache
+        $comments = $pWorksheet->getComments();
+
+        // Authors cache
+        $authors = [];
+        $authorId = 0;
+        foreach ($comments as $comment) {
+            if (!isset($authors[$comment->getAuthor()])) {
+                $authors[$comment->getAuthor()] = $authorId++;
+            }
+        }
+
+        // comments
+        $objWriter->startElement('comments');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+
+        // Loop through authors
+        $objWriter->startElement('authors');
+        foreach ($authors as $author => $index) {
+            $objWriter->writeElement('author', $author);
+        }
+        $objWriter->endElement();
+
+        // Loop through comments
+        $objWriter->startElement('commentList');
+        foreach ($comments as $key => $value) {
+            $this->writeComment($objWriter, $key, $value, $authors);
+        }
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write comment to XML format.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pCellReference Cell reference
+     * @param Comment $pComment Comment
+     * @param array $pAuthors Array of authors
+     */
+    private function writeComment(XMLWriter $objWriter, $pCellReference, Comment $pComment, array $pAuthors): void
+    {
+        // comment
+        $objWriter->startElement('comment');
+        $objWriter->writeAttribute('ref', $pCellReference);
+        $objWriter->writeAttribute('authorId', $pAuthors[$pComment->getAuthor()]);
+
+        // text
+        $objWriter->startElement('text');
+        $this->getParentWriter()->getWriterPart('stringtable')->writeRichText($objWriter, $pComment->getText());
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write VML comments to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeVMLComments(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Comments cache
+        $comments = $pWorksheet->getComments();
+
+        // xml
+        $objWriter->startElement('xml');
+        $objWriter->writeAttribute('xmlns:v', 'urn:schemas-microsoft-com:vml');
+        $objWriter->writeAttribute('xmlns:o', 'urn:schemas-microsoft-com:office:office');
+        $objWriter->writeAttribute('xmlns:x', 'urn:schemas-microsoft-com:office:excel');
+
+        // o:shapelayout
+        $objWriter->startElement('o:shapelayout');
+        $objWriter->writeAttribute('v:ext', 'edit');
+
+        // o:idmap
+        $objWriter->startElement('o:idmap');
+        $objWriter->writeAttribute('v:ext', 'edit');
+        $objWriter->writeAttribute('data', '1');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // v:shapetype
+        $objWriter->startElement('v:shapetype');
+        $objWriter->writeAttribute('id', '_x0000_t202');
+        $objWriter->writeAttribute('coordsize', '21600,21600');
+        $objWriter->writeAttribute('o:spt', '202');
+        $objWriter->writeAttribute('path', 'm,l,21600r21600,l21600,xe');
+
+        // v:stroke
+        $objWriter->startElement('v:stroke');
+        $objWriter->writeAttribute('joinstyle', 'miter');
+        $objWriter->endElement();
+
+        // v:path
+        $objWriter->startElement('v:path');
+        $objWriter->writeAttribute('gradientshapeok', 't');
+        $objWriter->writeAttribute('o:connecttype', 'rect');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // Loop through comments
+        foreach ($comments as $key => $value) {
+            $this->writeVMLComment($objWriter, $key, $value);
+        }
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write VML comment to XML format.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pCellReference Cell reference, eg: 'A1'
+     * @param Comment $pComment Comment
+     */
+    private function writeVMLComment(XMLWriter $objWriter, $pCellReference, Comment $pComment): void
+    {
+        // Metadata
+        [$column, $row] = Coordinate::coordinateFromString($pCellReference);
+        $column = Coordinate::columnIndexFromString($column);
+        $id = 1024 + $column + $row;
+        $id = substr($id, 0, 4);
+
+        // v:shape
+        $objWriter->startElement('v:shape');
+        $objWriter->writeAttribute('id', '_x0000_s' . $id);
+        $objWriter->writeAttribute('type', '#_x0000_t202');
+        $objWriter->writeAttribute('style', 'position:absolute;margin-left:' . $pComment->getMarginLeft() . ';margin-top:' . $pComment->getMarginTop() . ';width:' . $pComment->getWidth() . ';height:' . $pComment->getHeight() . ';z-index:1;visibility:' . ($pComment->getVisible() ? 'visible' : 'hidden'));
+        $objWriter->writeAttribute('fillcolor', '#' . $pComment->getFillColor()->getRGB());
+        $objWriter->writeAttribute('o:insetmode', 'auto');
+
+        // v:fill
+        $objWriter->startElement('v:fill');
+        $objWriter->writeAttribute('color2', '#' . $pComment->getFillColor()->getRGB());
+        $objWriter->endElement();
+
+        // v:shadow
+        $objWriter->startElement('v:shadow');
+        $objWriter->writeAttribute('on', 't');
+        $objWriter->writeAttribute('color', 'black');
+        $objWriter->writeAttribute('obscured', 't');
+        $objWriter->endElement();
+
+        // v:path
+        $objWriter->startElement('v:path');
+        $objWriter->writeAttribute('o:connecttype', 'none');
+        $objWriter->endElement();
+
+        // v:textbox
+        $objWriter->startElement('v:textbox');
+        $objWriter->writeAttribute('style', 'mso-direction-alt:auto');
+
+        // div
+        $objWriter->startElement('div');
+        $objWriter->writeAttribute('style', 'text-align:left');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // x:ClientData
+        $objWriter->startElement('x:ClientData');
+        $objWriter->writeAttribute('ObjectType', 'Note');
+
+        // x:MoveWithCells
+        $objWriter->writeElement('x:MoveWithCells', '');
+
+        // x:SizeWithCells
+        $objWriter->writeElement('x:SizeWithCells', '');
+
+        // x:AutoFill
+        $objWriter->writeElement('x:AutoFill', 'False');
+
+        // x:Row
+        $objWriter->writeElement('x:Row', ($row - 1));
+
+        // x:Column
+        $objWriter->writeElement('x:Column', ($column - 1));
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/ContentTypes.php

@@ -0,0 +1,240 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\File;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+
+class ContentTypes extends WriterPart
+{
+    /**
+     * Write content types to XML format.
+     *
+     * @param bool $includeCharts Flag indicating if we should include drawing details for charts
+     *
+     * @return string XML Output
+     */
+    public function writeContentTypes(Spreadsheet $spreadsheet, $includeCharts = false)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Types
+        $objWriter->startElement('Types');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/content-types');
+
+        // Theme
+        $this->writeOverrideContentType($objWriter, '/xl/theme/theme1.xml', 'application/vnd.openxmlformats-officedocument.theme+xml');
+
+        // Styles
+        $this->writeOverrideContentType($objWriter, '/xl/styles.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml');
+
+        // Rels
+        $this->writeDefaultContentType($objWriter, 'rels', 'application/vnd.openxmlformats-package.relationships+xml');
+
+        // XML
+        $this->writeDefaultContentType($objWriter, 'xml', 'application/xml');
+
+        // VML
+        $this->writeDefaultContentType($objWriter, 'vml', 'application/vnd.openxmlformats-officedocument.vmlDrawing');
+
+        // Workbook
+        if ($spreadsheet->hasMacros()) { //Macros in workbook ?
+            // Yes : not standard content but "macroEnabled"
+            $this->writeOverrideContentType($objWriter, '/xl/workbook.xml', 'application/vnd.ms-excel.sheet.macroEnabled.main+xml');
+            //... and define a new type for the VBA project
+            // Better use Override, because we can use 'bin' also for xl\printerSettings\printerSettings1.bin
+            $this->writeOverrideContentType($objWriter, '/xl/vbaProject.bin', 'application/vnd.ms-office.vbaProject');
+            if ($spreadsheet->hasMacrosCertificate()) {
+                // signed macros ?
+                // Yes : add needed information
+                $this->writeOverrideContentType($objWriter, '/xl/vbaProjectSignature.bin', 'application/vnd.ms-office.vbaProjectSignature');
+            }
+        } else {
+            // no macros in workbook, so standard type
+            $this->writeOverrideContentType($objWriter, '/xl/workbook.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml');
+        }
+
+        // DocProps
+        $this->writeOverrideContentType($objWriter, '/docProps/app.xml', 'application/vnd.openxmlformats-officedocument.extended-properties+xml');
+
+        $this->writeOverrideContentType($objWriter, '/docProps/core.xml', 'application/vnd.openxmlformats-package.core-properties+xml');
+
+        $customPropertyList = $spreadsheet->getProperties()->getCustomProperties();
+        if (!empty($customPropertyList)) {
+            $this->writeOverrideContentType($objWriter, '/docProps/custom.xml', 'application/vnd.openxmlformats-officedocument.custom-properties+xml');
+        }
+
+        // Worksheets
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            $this->writeOverrideContentType($objWriter, '/xl/worksheets/sheet' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml');
+        }
+
+        // Shared strings
+        $this->writeOverrideContentType($objWriter, '/xl/sharedStrings.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml');
+
+        // Add worksheet relationship content types
+        $unparsedLoadedData = $spreadsheet->getUnparsedLoadedData();
+        $chart = 1;
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            $drawings = $spreadsheet->getSheet($i)->getDrawingCollection();
+            $drawingCount = count($drawings);
+            $chartCount = ($includeCharts) ? $spreadsheet->getSheet($i)->getChartCount() : 0;
+            $hasUnparsedDrawing = isset($unparsedLoadedData['sheets'][$spreadsheet->getSheet($i)->getCodeName()]['drawingOriginalIds']);
+
+            //    We need a drawing relationship for the worksheet if we have either drawings or charts
+            if (($drawingCount > 0) || ($chartCount > 0) || $hasUnparsedDrawing) {
+                $this->writeOverrideContentType($objWriter, '/xl/drawings/drawing' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.drawing+xml');
+            }
+
+            //    If we have charts, then we need a chart relationship for every individual chart
+            if ($chartCount > 0) {
+                for ($c = 0; $c < $chartCount; ++$c) {
+                    $this->writeOverrideContentType($objWriter, '/xl/charts/chart' . $chart++ . '.xml', 'application/vnd.openxmlformats-officedocument.drawingml.chart+xml');
+                }
+            }
+        }
+
+        // Comments
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            if (count($spreadsheet->getSheet($i)->getComments()) > 0) {
+                $this->writeOverrideContentType($objWriter, '/xl/comments' . ($i + 1) . '.xml', 'application/vnd.openxmlformats-officedocument.spreadsheetml.comments+xml');
+            }
+        }
+
+        // Add media content-types
+        $aMediaContentTypes = [];
+        $mediaCount = $this->getParentWriter()->getDrawingHashTable()->count();
+        for ($i = 0; $i < $mediaCount; ++$i) {
+            $extension = '';
+            $mimeType = '';
+
+            if ($this->getParentWriter()->getDrawingHashTable()->getByIndex($i) instanceof \PhpOffice\PhpSpreadsheet\Worksheet\Drawing) {
+                $extension = strtolower($this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getExtension());
+                $mimeType = $this->getImageMimeType($this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getPath());
+            } elseif ($this->getParentWriter()->getDrawingHashTable()->getByIndex($i) instanceof MemoryDrawing) {
+                $extension = strtolower($this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getMimeType());
+                $extension = explode('/', $extension);
+                $extension = $extension[1];
+
+                $mimeType = $this->getParentWriter()->getDrawingHashTable()->getByIndex($i)->getMimeType();
+            }
+
+            if (!isset($aMediaContentTypes[$extension])) {
+                $aMediaContentTypes[$extension] = $mimeType;
+
+                $this->writeDefaultContentType($objWriter, $extension, $mimeType);
+            }
+        }
+        if ($spreadsheet->hasRibbonBinObjects()) {
+            // Some additional objects in the ribbon ?
+            // we need to write "Extension" but not already write for media content
+            $tabRibbonTypes = array_diff($spreadsheet->getRibbonBinObjects('types'), array_keys($aMediaContentTypes));
+            foreach ($tabRibbonTypes as $aRibbonType) {
+                $mimeType = 'image/.' . $aRibbonType; //we wrote $mimeType like customUI Editor
+                $this->writeDefaultContentType($objWriter, $aRibbonType, $mimeType);
+            }
+        }
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            if (count($spreadsheet->getSheet($i)->getHeaderFooter()->getImages()) > 0) {
+                foreach ($spreadsheet->getSheet($i)->getHeaderFooter()->getImages() as $image) {
+                    if (!isset($aMediaContentTypes[strtolower($image->getExtension())])) {
+                        $aMediaContentTypes[strtolower($image->getExtension())] = $this->getImageMimeType($image->getPath());
+
+                        $this->writeDefaultContentType($objWriter, strtolower($image->getExtension()), $aMediaContentTypes[strtolower($image->getExtension())]);
+                    }
+                }
+            }
+        }
+
+        // unparsed defaults
+        if (isset($unparsedLoadedData['default_content_types'])) {
+            foreach ($unparsedLoadedData['default_content_types'] as $extName => $contentType) {
+                $this->writeDefaultContentType($objWriter, $extName, $contentType);
+            }
+        }
+
+        // unparsed overrides
+        if (isset($unparsedLoadedData['override_content_types'])) {
+            foreach ($unparsedLoadedData['override_content_types'] as $partName => $overrideType) {
+                $this->writeOverrideContentType($objWriter, $partName, $overrideType);
+            }
+        }
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Get image mime type.
+     *
+     * @param string $pFile Filename
+     *
+     * @return string Mime Type
+     */
+    private function getImageMimeType($pFile)
+    {
+        if (File::fileExists($pFile)) {
+            $image = getimagesize($pFile);
+
+            return image_type_to_mime_type($image[2]);
+        }
+
+        throw new WriterException("File $pFile does not exist");
+    }
+
+    /**
+     * Write Default content type.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pPartname Part name
+     * @param string $pContentType Content type
+     */
+    private function writeDefaultContentType(XMLWriter $objWriter, $pPartname, $pContentType): void
+    {
+        if ($pPartname != '' && $pContentType != '') {
+            // Write content type
+            $objWriter->startElement('Default');
+            $objWriter->writeAttribute('Extension', $pPartname);
+            $objWriter->writeAttribute('ContentType', $pContentType);
+            $objWriter->endElement();
+        } else {
+            throw new WriterException('Invalid parameters passed.');
+        }
+    }
+
+    /**
+     * Write Override content type.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pPartname Part name
+     * @param string $pContentType Content type
+     */
+    private function writeOverrideContentType(XMLWriter $objWriter, $pPartname, $pContentType): void
+    {
+        if ($pPartname != '' && $pContentType != '') {
+            // Write content type
+            $objWriter->startElement('Override');
+            $objWriter->writeAttribute('PartName', $pPartname);
+            $objWriter->writeAttribute('ContentType', $pContentType);
+            $objWriter->endElement();
+        } else {
+            throw new WriterException('Invalid parameters passed.');
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/DefinedNames.php

@@ -0,0 +1,223 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\DefinedName;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class DefinedNames
+{
+    private $objWriter;
+
+    private $spreadsheet;
+
+    public function __construct(XMLWriter $objWriter, Spreadsheet $spreadsheet)
+    {
+        $this->objWriter = $objWriter;
+        $this->spreadsheet = $spreadsheet;
+    }
+
+    public function write(): void
+    {
+        // Write defined names
+        $this->objWriter->startElement('definedNames');
+
+        // Named ranges
+        if (count($this->spreadsheet->getDefinedNames()) > 0) {
+            // Named ranges
+            $this->writeNamedRangesAndFormulae();
+        }
+
+        // Other defined names
+        $sheetCount = $this->spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            // NamedRange for autoFilter
+            $this->writeNamedRangeForAutofilter($this->spreadsheet->getSheet($i), $i);
+
+            // NamedRange for Print_Titles
+            $this->writeNamedRangeForPrintTitles($this->spreadsheet->getSheet($i), $i);
+
+            // NamedRange for Print_Area
+            $this->writeNamedRangeForPrintArea($this->spreadsheet->getSheet($i), $i);
+        }
+
+        $this->objWriter->endElement();
+    }
+
+    /**
+     * Write defined names.
+     */
+    private function writeNamedRangesAndFormulae(): void
+    {
+        // Loop named ranges
+        $definedNames = $this->spreadsheet->getDefinedNames();
+        foreach ($definedNames as $definedName) {
+            $this->writeDefinedName($definedName);
+        }
+    }
+
+    /**
+     * Write Defined Name for named range.
+     */
+    private function writeDefinedName(DefinedName $pDefinedName): void
+    {
+        // definedName for named range
+        $this->objWriter->startElement('definedName');
+        $this->objWriter->writeAttribute('name', $pDefinedName->getName());
+        if ($pDefinedName->getLocalOnly() && $pDefinedName->getScope() !== null) {
+            $this->objWriter->writeAttribute('localSheetId', $pDefinedName->getScope()->getParent()->getIndex($pDefinedName->getScope()));
+        }
+
+        $definedRange = $pDefinedName->getValue();
+        $splitCount = preg_match_all(
+            '/' . Calculation::CALCULATION_REGEXP_CELLREF_RELATIVE . '/mui',
+            $definedRange,
+            $splitRanges,
+            PREG_OFFSET_CAPTURE
+        );
+
+        $lengths = array_map('strlen', array_column($splitRanges[0], 0));
+        $offsets = array_column($splitRanges[0], 1);
+
+        $worksheets = $splitRanges[2];
+        $columns = $splitRanges[6];
+        $rows = $splitRanges[7];
+
+        while ($splitCount > 0) {
+            --$splitCount;
+            $length = $lengths[$splitCount];
+            $offset = $offsets[$splitCount];
+            $worksheet = $worksheets[$splitCount][0];
+            $column = $columns[$splitCount][0];
+            $row = $rows[$splitCount][0];
+
+            $newRange = '';
+            if (empty($worksheet)) {
+                if (($offset === 0) || ($definedRange[$offset - 1] !== ':')) {
+                    // We should have a worksheet
+                    $worksheet = $pDefinedName->getWorksheet()->getTitle();
+                }
+            } else {
+                $worksheet = str_replace("''", "'", trim($worksheet, "'"));
+            }
+            if (!empty($worksheet)) {
+                $newRange = "'" . str_replace("'", "''", $worksheet) . "'!";
+            }
+
+            if (!empty($column)) {
+                $newRange .= $column;
+            }
+            if (!empty($row)) {
+                $newRange .= $row;
+            }
+
+            $definedRange = substr($definedRange, 0, $offset) . $newRange . substr($definedRange, $offset + $length);
+        }
+
+        if (substr($definedRange, 0, 1) === '=') {
+            $definedRange = substr($definedRange, 1);
+        }
+
+        $this->objWriter->writeRawData($definedRange);
+
+        $this->objWriter->endElement();
+    }
+
+    /**
+     * Write Defined Name for autoFilter.
+     */
+    private function writeNamedRangeForAutofilter(Worksheet $pSheet, int $pSheetId = 0): void
+    {
+        // NamedRange for autoFilter
+        $autoFilterRange = $pSheet->getAutoFilter()->getRange();
+        if (!empty($autoFilterRange)) {
+            $this->objWriter->startElement('definedName');
+            $this->objWriter->writeAttribute('name', '_xlnm._FilterDatabase');
+            $this->objWriter->writeAttribute('localSheetId', $pSheetId);
+            $this->objWriter->writeAttribute('hidden', '1');
+
+            // Create absolute coordinate and write as raw text
+            $range = Coordinate::splitRange($autoFilterRange);
+            $range = $range[0];
+            //    Strip any worksheet ref so we can make the cell ref absolute
+            [$ws, $range[0]] = Worksheet::extractSheetTitle($range[0], true);
+
+            $range[0] = Coordinate::absoluteCoordinate($range[0]);
+            $range[1] = Coordinate::absoluteCoordinate($range[1]);
+            $range = implode(':', $range);
+
+            $this->objWriter->writeRawData('\'' . str_replace("'", "''", $pSheet->getTitle()) . '\'!' . $range);
+
+            $this->objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write Defined Name for PrintTitles.
+     */
+    private function writeNamedRangeForPrintTitles(Worksheet $pSheet, int $pSheetId = 0): void
+    {
+        // NamedRange for PrintTitles
+        if ($pSheet->getPageSetup()->isColumnsToRepeatAtLeftSet() || $pSheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
+            $this->objWriter->startElement('definedName');
+            $this->objWriter->writeAttribute('name', '_xlnm.Print_Titles');
+            $this->objWriter->writeAttribute('localSheetId', $pSheetId);
+
+            // Setting string
+            $settingString = '';
+
+            // Columns to repeat
+            if ($pSheet->getPageSetup()->isColumnsToRepeatAtLeftSet()) {
+                $repeat = $pSheet->getPageSetup()->getColumnsToRepeatAtLeft();
+
+                $settingString .= '\'' . str_replace("'", "''", $pSheet->getTitle()) . '\'!$' . $repeat[0] . ':$' . $repeat[1];
+            }
+
+            // Rows to repeat
+            if ($pSheet->getPageSetup()->isRowsToRepeatAtTopSet()) {
+                if ($pSheet->getPageSetup()->isColumnsToRepeatAtLeftSet()) {
+                    $settingString .= ',';
+                }
+
+                $repeat = $pSheet->getPageSetup()->getRowsToRepeatAtTop();
+
+                $settingString .= '\'' . str_replace("'", "''", $pSheet->getTitle()) . '\'!$' . $repeat[0] . ':$' . $repeat[1];
+            }
+
+            $this->objWriter->writeRawData($settingString);
+
+            $this->objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write Defined Name for PrintTitles.
+     */
+    private function writeNamedRangeForPrintArea(Worksheet $pSheet, int $pSheetId = 0): void
+    {
+        // NamedRange for PrintArea
+        if ($pSheet->getPageSetup()->isPrintAreaSet()) {
+            $this->objWriter->startElement('definedName');
+            $this->objWriter->writeAttribute('name', '_xlnm.Print_Area');
+            $this->objWriter->writeAttribute('localSheetId', $pSheetId);
+
+            // Print area
+            $printArea = Coordinate::splitRange($pSheet->getPageSetup()->getPrintArea());
+
+            $chunks = [];
+            foreach ($printArea as $printAreaRect) {
+                $printAreaRect[0] = Coordinate::absoluteReference($printAreaRect[0]);
+                $printAreaRect[1] = Coordinate::absoluteReference($printAreaRect[1]);
+                $chunks[] = '\'' . str_replace("'", "''", $pSheet->getTitle()) . '\'!' . implode(':', $printAreaRect);
+            }
+
+            $this->objWriter->writeRawData(implode(',', $chunks));
+
+            $this->objWriter->endElement();
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/DocProps.php

@@ -0,0 +1,239 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class DocProps extends WriterPart
+{
+    /**
+     * Write docProps/app.xml to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeDocPropsApp(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Properties
+        $objWriter->startElement('Properties');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/officeDocument/2006/extended-properties');
+        $objWriter->writeAttribute('xmlns:vt', 'http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes');
+
+        // Application
+        $objWriter->writeElement('Application', 'Microsoft Excel');
+
+        // DocSecurity
+        $objWriter->writeElement('DocSecurity', '0');
+
+        // ScaleCrop
+        $objWriter->writeElement('ScaleCrop', 'false');
+
+        // HeadingPairs
+        $objWriter->startElement('HeadingPairs');
+
+        // Vector
+        $objWriter->startElement('vt:vector');
+        $objWriter->writeAttribute('size', '2');
+        $objWriter->writeAttribute('baseType', 'variant');
+
+        // Variant
+        $objWriter->startElement('vt:variant');
+        $objWriter->writeElement('vt:lpstr', 'Worksheets');
+        $objWriter->endElement();
+
+        // Variant
+        $objWriter->startElement('vt:variant');
+        $objWriter->writeElement('vt:i4', $spreadsheet->getSheetCount());
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // TitlesOfParts
+        $objWriter->startElement('TitlesOfParts');
+
+        // Vector
+        $objWriter->startElement('vt:vector');
+        $objWriter->writeAttribute('size', $spreadsheet->getSheetCount());
+        $objWriter->writeAttribute('baseType', 'lpstr');
+
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            $objWriter->writeElement('vt:lpstr', $spreadsheet->getSheet($i)->getTitle());
+        }
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // Company
+        $objWriter->writeElement('Company', $spreadsheet->getProperties()->getCompany());
+
+        // Company
+        $objWriter->writeElement('Manager', $spreadsheet->getProperties()->getManager());
+
+        // LinksUpToDate
+        $objWriter->writeElement('LinksUpToDate', 'false');
+
+        // SharedDoc
+        $objWriter->writeElement('SharedDoc', 'false');
+
+        // HyperlinksChanged
+        $objWriter->writeElement('HyperlinksChanged', 'false');
+
+        // AppVersion
+        $objWriter->writeElement('AppVersion', '12.0000');
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write docProps/core.xml to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeDocPropsCore(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // cp:coreProperties
+        $objWriter->startElement('cp:coreProperties');
+        $objWriter->writeAttribute('xmlns:cp', 'http://schemas.openxmlformats.org/package/2006/metadata/core-properties');
+        $objWriter->writeAttribute('xmlns:dc', 'http://purl.org/dc/elements/1.1/');
+        $objWriter->writeAttribute('xmlns:dcterms', 'http://purl.org/dc/terms/');
+        $objWriter->writeAttribute('xmlns:dcmitype', 'http://purl.org/dc/dcmitype/');
+        $objWriter->writeAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
+
+        // dc:creator
+        $objWriter->writeElement('dc:creator', $spreadsheet->getProperties()->getCreator());
+
+        // cp:lastModifiedBy
+        $objWriter->writeElement('cp:lastModifiedBy', $spreadsheet->getProperties()->getLastModifiedBy());
+
+        // dcterms:created
+        $objWriter->startElement('dcterms:created');
+        $objWriter->writeAttribute('xsi:type', 'dcterms:W3CDTF');
+        $objWriter->writeRawData(date(DATE_W3C, $spreadsheet->getProperties()->getCreated()));
+        $objWriter->endElement();
+
+        // dcterms:modified
+        $objWriter->startElement('dcterms:modified');
+        $objWriter->writeAttribute('xsi:type', 'dcterms:W3CDTF');
+        $objWriter->writeRawData(date(DATE_W3C, $spreadsheet->getProperties()->getModified()));
+        $objWriter->endElement();
+
+        // dc:title
+        $objWriter->writeElement('dc:title', $spreadsheet->getProperties()->getTitle());
+
+        // dc:description
+        $objWriter->writeElement('dc:description', $spreadsheet->getProperties()->getDescription());
+
+        // dc:subject
+        $objWriter->writeElement('dc:subject', $spreadsheet->getProperties()->getSubject());
+
+        // cp:keywords
+        $objWriter->writeElement('cp:keywords', $spreadsheet->getProperties()->getKeywords());
+
+        // cp:category
+        $objWriter->writeElement('cp:category', $spreadsheet->getProperties()->getCategory());
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write docProps/custom.xml to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeDocPropsCustom(Spreadsheet $spreadsheet)
+    {
+        $customPropertyList = $spreadsheet->getProperties()->getCustomProperties();
+        if (empty($customPropertyList)) {
+            return;
+        }
+
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // cp:coreProperties
+        $objWriter->startElement('Properties');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/officeDocument/2006/custom-properties');
+        $objWriter->writeAttribute('xmlns:vt', 'http://schemas.openxmlformats.org/officeDocument/2006/docPropsVTypes');
+
+        foreach ($customPropertyList as $key => $customProperty) {
+            $propertyValue = $spreadsheet->getProperties()->getCustomPropertyValue($customProperty);
+            $propertyType = $spreadsheet->getProperties()->getCustomPropertyType($customProperty);
+
+            $objWriter->startElement('property');
+            $objWriter->writeAttribute('fmtid', '{D5CDD505-2E9C-101B-9397-08002B2CF9AE}');
+            $objWriter->writeAttribute('pid', $key + 2);
+            $objWriter->writeAttribute('name', $customProperty);
+
+            switch ($propertyType) {
+                case 'i':
+                    $objWriter->writeElement('vt:i4', $propertyValue);
+
+                    break;
+                case 'f':
+                    $objWriter->writeElement('vt:r8', $propertyValue);
+
+                    break;
+                case 'b':
+                    $objWriter->writeElement('vt:bool', ($propertyValue) ? 'true' : 'false');
+
+                    break;
+                case 'd':
+                    $objWriter->startElement('vt:filetime');
+                    $objWriter->writeRawData(date(DATE_W3C, $propertyValue));
+                    $objWriter->endElement();
+
+                    break;
+                default:
+                    $objWriter->writeElement('vt:lpwstr', $propertyValue);
+
+                    break;
+            }
+
+            $objWriter->endElement();
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Drawing.php

@@ -0,0 +1,505 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\BaseDrawing;
+use PhpOffice\PhpSpreadsheet\Worksheet\HeaderFooterDrawing;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+
+class Drawing extends WriterPart
+{
+    /**
+     * Write drawings to XML format.
+     *
+     * @param bool $includeCharts Flag indicating if we should include drawing details for charts
+     *
+     * @return string XML Output
+     */
+    public function writeDrawings(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet, $includeCharts = false)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // xdr:wsDr
+        $objWriter->startElement('xdr:wsDr');
+        $objWriter->writeAttribute('xmlns:xdr', 'http://schemas.openxmlformats.org/drawingml/2006/spreadsheetDrawing');
+        $objWriter->writeAttribute('xmlns:a', 'http://schemas.openxmlformats.org/drawingml/2006/main');
+
+        // Loop through images and write drawings
+        $i = 1;
+        $iterator = $pWorksheet->getDrawingCollection()->getIterator();
+        while ($iterator->valid()) {
+            /** @var BaseDrawing $pDrawing */
+            $pDrawing = $iterator->current();
+            $pRelationId = $i;
+            $hlinkClickId = $pDrawing->getHyperlink() === null ? null : ++$i;
+
+            $this->writeDrawing($objWriter, $pDrawing, $pRelationId, $hlinkClickId);
+
+            $iterator->next();
+            ++$i;
+        }
+
+        if ($includeCharts) {
+            $chartCount = $pWorksheet->getChartCount();
+            // Loop through charts and write the chart position
+            if ($chartCount > 0) {
+                for ($c = 0; $c < $chartCount; ++$c) {
+                    $this->writeChart($objWriter, $pWorksheet->getChartByIndex($c), $c + $i);
+                }
+            }
+        }
+
+        // unparsed AlternateContent
+        $unparsedLoadedData = $pWorksheet->getParent()->getUnparsedLoadedData();
+        if (isset($unparsedLoadedData['sheets'][$pWorksheet->getCodeName()]['drawingAlternateContents'])) {
+            foreach ($unparsedLoadedData['sheets'][$pWorksheet->getCodeName()]['drawingAlternateContents'] as $drawingAlternateContent) {
+                $objWriter->writeRaw($drawingAlternateContent);
+            }
+        }
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write drawings to XML format.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param int $pRelationId
+     */
+    public function writeChart(XMLWriter $objWriter, \PhpOffice\PhpSpreadsheet\Chart\Chart $pChart, $pRelationId = -1): void
+    {
+        $tl = $pChart->getTopLeftPosition();
+        $tl['colRow'] = Coordinate::coordinateFromString($tl['cell']);
+        $br = $pChart->getBottomRightPosition();
+        $br['colRow'] = Coordinate::coordinateFromString($br['cell']);
+
+        $objWriter->startElement('xdr:twoCellAnchor');
+
+        $objWriter->startElement('xdr:from');
+        $objWriter->writeElement('xdr:col', Coordinate::columnIndexFromString($tl['colRow'][0]) - 1);
+        $objWriter->writeElement('xdr:colOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($tl['xOffset']));
+        $objWriter->writeElement('xdr:row', $tl['colRow'][1] - 1);
+        $objWriter->writeElement('xdr:rowOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($tl['yOffset']));
+        $objWriter->endElement();
+        $objWriter->startElement('xdr:to');
+        $objWriter->writeElement('xdr:col', Coordinate::columnIndexFromString($br['colRow'][0]) - 1);
+        $objWriter->writeElement('xdr:colOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($br['xOffset']));
+        $objWriter->writeElement('xdr:row', $br['colRow'][1] - 1);
+        $objWriter->writeElement('xdr:rowOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($br['yOffset']));
+        $objWriter->endElement();
+
+        $objWriter->startElement('xdr:graphicFrame');
+        $objWriter->writeAttribute('macro', '');
+        $objWriter->startElement('xdr:nvGraphicFramePr');
+        $objWriter->startElement('xdr:cNvPr');
+        $objWriter->writeAttribute('name', 'Chart ' . $pRelationId);
+        $objWriter->writeAttribute('id', 1025 * $pRelationId);
+        $objWriter->endElement();
+        $objWriter->startElement('xdr:cNvGraphicFramePr');
+        $objWriter->startElement('a:graphicFrameLocks');
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        $objWriter->startElement('xdr:xfrm');
+        $objWriter->startElement('a:off');
+        $objWriter->writeAttribute('x', '0');
+        $objWriter->writeAttribute('y', '0');
+        $objWriter->endElement();
+        $objWriter->startElement('a:ext');
+        $objWriter->writeAttribute('cx', '0');
+        $objWriter->writeAttribute('cy', '0');
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        $objWriter->startElement('a:graphic');
+        $objWriter->startElement('a:graphicData');
+        $objWriter->writeAttribute('uri', 'http://schemas.openxmlformats.org/drawingml/2006/chart');
+        $objWriter->startElement('c:chart');
+        $objWriter->writeAttribute('xmlns:c', 'http://schemas.openxmlformats.org/drawingml/2006/chart');
+        $objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
+        $objWriter->writeAttribute('r:id', 'rId' . $pRelationId);
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        $objWriter->startElement('xdr:clientData');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write drawings to XML format.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param int $pRelationId
+     * @param null|int $hlinkClickId
+     */
+    public function writeDrawing(XMLWriter $objWriter, BaseDrawing $pDrawing, $pRelationId = -1, $hlinkClickId = null): void
+    {
+        if ($pRelationId >= 0) {
+            // xdr:oneCellAnchor
+            $objWriter->startElement('xdr:oneCellAnchor');
+            // Image location
+            $aCoordinates = Coordinate::coordinateFromString($pDrawing->getCoordinates());
+            $aCoordinates[0] = Coordinate::columnIndexFromString($aCoordinates[0]);
+
+            // xdr:from
+            $objWriter->startElement('xdr:from');
+            $objWriter->writeElement('xdr:col', $aCoordinates[0] - 1);
+            $objWriter->writeElement('xdr:colOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getOffsetX()));
+            $objWriter->writeElement('xdr:row', $aCoordinates[1] - 1);
+            $objWriter->writeElement('xdr:rowOff', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getOffsetY()));
+            $objWriter->endElement();
+
+            // xdr:ext
+            $objWriter->startElement('xdr:ext');
+            $objWriter->writeAttribute('cx', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getWidth()));
+            $objWriter->writeAttribute('cy', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getHeight()));
+            $objWriter->endElement();
+
+            // xdr:pic
+            $objWriter->startElement('xdr:pic');
+
+            // xdr:nvPicPr
+            $objWriter->startElement('xdr:nvPicPr');
+
+            // xdr:cNvPr
+            $objWriter->startElement('xdr:cNvPr');
+            $objWriter->writeAttribute('id', $pRelationId);
+            $objWriter->writeAttribute('name', $pDrawing->getName());
+            $objWriter->writeAttribute('descr', $pDrawing->getDescription());
+
+            //a:hlinkClick
+            $this->writeHyperLinkDrawing($objWriter, $hlinkClickId);
+
+            $objWriter->endElement();
+
+            // xdr:cNvPicPr
+            $objWriter->startElement('xdr:cNvPicPr');
+
+            // a:picLocks
+            $objWriter->startElement('a:picLocks');
+            $objWriter->writeAttribute('noChangeAspect', '1');
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+
+            // xdr:blipFill
+            $objWriter->startElement('xdr:blipFill');
+
+            // a:blip
+            $objWriter->startElement('a:blip');
+            $objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
+            $objWriter->writeAttribute('r:embed', 'rId' . $pRelationId);
+            $objWriter->endElement();
+
+            // a:stretch
+            $objWriter->startElement('a:stretch');
+            $objWriter->writeElement('a:fillRect', null);
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+
+            // xdr:spPr
+            $objWriter->startElement('xdr:spPr');
+
+            // a:xfrm
+            $objWriter->startElement('a:xfrm');
+            $objWriter->writeAttribute('rot', \PhpOffice\PhpSpreadsheet\Shared\Drawing::degreesToAngle($pDrawing->getRotation()));
+            $objWriter->endElement();
+
+            // a:prstGeom
+            $objWriter->startElement('a:prstGeom');
+            $objWriter->writeAttribute('prst', 'rect');
+
+            // a:avLst
+            $objWriter->writeElement('a:avLst', null);
+
+            $objWriter->endElement();
+
+            if ($pDrawing->getShadow()->getVisible()) {
+                // a:effectLst
+                $objWriter->startElement('a:effectLst');
+
+                // a:outerShdw
+                $objWriter->startElement('a:outerShdw');
+                $objWriter->writeAttribute('blurRad', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getShadow()->getBlurRadius()));
+                $objWriter->writeAttribute('dist', \PhpOffice\PhpSpreadsheet\Shared\Drawing::pixelsToEMU($pDrawing->getShadow()->getDistance()));
+                $objWriter->writeAttribute('dir', \PhpOffice\PhpSpreadsheet\Shared\Drawing::degreesToAngle($pDrawing->getShadow()->getDirection()));
+                $objWriter->writeAttribute('algn', $pDrawing->getShadow()->getAlignment());
+                $objWriter->writeAttribute('rotWithShape', '0');
+
+                // a:srgbClr
+                $objWriter->startElement('a:srgbClr');
+                $objWriter->writeAttribute('val', $pDrawing->getShadow()->getColor()->getRGB());
+
+                // a:alpha
+                $objWriter->startElement('a:alpha');
+                $objWriter->writeAttribute('val', $pDrawing->getShadow()->getAlpha() * 1000);
+                $objWriter->endElement();
+
+                $objWriter->endElement();
+
+                $objWriter->endElement();
+
+                $objWriter->endElement();
+            }
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+
+            // xdr:clientData
+            $objWriter->writeElement('xdr:clientData', null);
+
+            $objWriter->endElement();
+        } else {
+            throw new WriterException('Invalid parameters passed.');
+        }
+    }
+
+    /**
+     * Write VML header/footer images to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeVMLHeaderFooterImages(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Header/footer images
+        $images = $pWorksheet->getHeaderFooter()->getImages();
+
+        // xml
+        $objWriter->startElement('xml');
+        $objWriter->writeAttribute('xmlns:v', 'urn:schemas-microsoft-com:vml');
+        $objWriter->writeAttribute('xmlns:o', 'urn:schemas-microsoft-com:office:office');
+        $objWriter->writeAttribute('xmlns:x', 'urn:schemas-microsoft-com:office:excel');
+
+        // o:shapelayout
+        $objWriter->startElement('o:shapelayout');
+        $objWriter->writeAttribute('v:ext', 'edit');
+
+        // o:idmap
+        $objWriter->startElement('o:idmap');
+        $objWriter->writeAttribute('v:ext', 'edit');
+        $objWriter->writeAttribute('data', '1');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // v:shapetype
+        $objWriter->startElement('v:shapetype');
+        $objWriter->writeAttribute('id', '_x0000_t75');
+        $objWriter->writeAttribute('coordsize', '21600,21600');
+        $objWriter->writeAttribute('o:spt', '75');
+        $objWriter->writeAttribute('o:preferrelative', 't');
+        $objWriter->writeAttribute('path', 'm@4@5l@4@11@9@11@9@5xe');
+        $objWriter->writeAttribute('filled', 'f');
+        $objWriter->writeAttribute('stroked', 'f');
+
+        // v:stroke
+        $objWriter->startElement('v:stroke');
+        $objWriter->writeAttribute('joinstyle', 'miter');
+        $objWriter->endElement();
+
+        // v:formulas
+        $objWriter->startElement('v:formulas');
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'if lineDrawn pixelLineWidth 0');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'sum @0 1 0');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'sum 0 0 @1');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @2 1 2');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @3 21600 pixelWidth');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @3 21600 pixelHeight');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'sum @0 0 1');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @6 1 2');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @7 21600 pixelWidth');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'sum @8 21600 0');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'prod @7 21600 pixelHeight');
+        $objWriter->endElement();
+
+        // v:f
+        $objWriter->startElement('v:f');
+        $objWriter->writeAttribute('eqn', 'sum @10 21600 0');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // v:path
+        $objWriter->startElement('v:path');
+        $objWriter->writeAttribute('o:extrusionok', 'f');
+        $objWriter->writeAttribute('gradientshapeok', 't');
+        $objWriter->writeAttribute('o:connecttype', 'rect');
+        $objWriter->endElement();
+
+        // o:lock
+        $objWriter->startElement('o:lock');
+        $objWriter->writeAttribute('v:ext', 'edit');
+        $objWriter->writeAttribute('aspectratio', 't');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // Loop through images
+        foreach ($images as $key => $value) {
+            $this->writeVMLHeaderFooterImage($objWriter, $key, $value);
+        }
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write VML comment to XML format.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pReference Reference
+     * @param HeaderFooterDrawing $pImage Image
+     */
+    private function writeVMLHeaderFooterImage(XMLWriter $objWriter, $pReference, HeaderFooterDrawing $pImage): void
+    {
+        // Calculate object id
+        preg_match('{(\d+)}', md5($pReference), $m);
+        $id = 1500 + (substr($m[1], 0, 2) * 1);
+
+        // Calculate offset
+        $width = $pImage->getWidth();
+        $height = $pImage->getHeight();
+        $marginLeft = $pImage->getOffsetX();
+        $marginTop = $pImage->getOffsetY();
+
+        // v:shape
+        $objWriter->startElement('v:shape');
+        $objWriter->writeAttribute('id', $pReference);
+        $objWriter->writeAttribute('o:spid', '_x0000_s' . $id);
+        $objWriter->writeAttribute('type', '#_x0000_t75');
+        $objWriter->writeAttribute('style', "position:absolute;margin-left:{$marginLeft}px;margin-top:{$marginTop}px;width:{$width}px;height:{$height}px;z-index:1");
+
+        // v:imagedata
+        $objWriter->startElement('v:imagedata');
+        $objWriter->writeAttribute('o:relid', 'rId' . $pReference);
+        $objWriter->writeAttribute('o:title', $pImage->getName());
+        $objWriter->endElement();
+
+        // o:lock
+        $objWriter->startElement('o:lock');
+        $objWriter->writeAttribute('v:ext', 'edit');
+        $objWriter->writeAttribute('textRotation', 't');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Get an array of all drawings.
+     *
+     * @return \PhpOffice\PhpSpreadsheet\Worksheet\Drawing[] All drawings in PhpSpreadsheet
+     */
+    public function allDrawings(Spreadsheet $spreadsheet)
+    {
+        // Get an array of all drawings
+        $aDrawings = [];
+
+        // Loop through PhpSpreadsheet
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            // Loop through images and add to array
+            $iterator = $spreadsheet->getSheet($i)->getDrawingCollection()->getIterator();
+            while ($iterator->valid()) {
+                $aDrawings[] = $iterator->current();
+
+                $iterator->next();
+            }
+        }
+
+        return $aDrawings;
+    }
+
+    /**
+     * @param null|int $hlinkClickId
+     */
+    private function writeHyperLinkDrawing(XMLWriter $objWriter, $hlinkClickId): void
+    {
+        if ($hlinkClickId === null) {
+            return;
+        }
+
+        $objWriter->startElement('a:hlinkClick');
+        $objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
+        $objWriter->writeAttribute('r:id', 'rId' . $hlinkClickId);
+        $objWriter->endElement();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Rels.php

@@ -0,0 +1,451 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Worksheet\MemoryDrawing;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+
+class Rels extends WriterPart
+{
+    /**
+     * Write relationships to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeRelationships(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+
+        $customPropertyList = $spreadsheet->getProperties()->getCustomProperties();
+        if (!empty($customPropertyList)) {
+            // Relationship docProps/app.xml
+            $this->writeRelationship(
+                $objWriter,
+                4,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties',
+                'docProps/custom.xml'
+            );
+        }
+
+        // Relationship docProps/app.xml
+        $this->writeRelationship(
+            $objWriter,
+            3,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties',
+            'docProps/app.xml'
+        );
+
+        // Relationship docProps/core.xml
+        $this->writeRelationship(
+            $objWriter,
+            2,
+            'http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties',
+            'docProps/core.xml'
+        );
+
+        // Relationship xl/workbook.xml
+        $this->writeRelationship(
+            $objWriter,
+            1,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument',
+            'xl/workbook.xml'
+        );
+        // a custom UI in workbook ?
+        if ($spreadsheet->hasRibbon()) {
+            $this->writeRelationShip(
+                $objWriter,
+                5,
+                'http://schemas.microsoft.com/office/2006/relationships/ui/extensibility',
+                $spreadsheet->getRibbonXMLData('target')
+            );
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write workbook relationships to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeWorkbookRelationships(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+
+        // Relationship styles.xml
+        $this->writeRelationship(
+            $objWriter,
+            1,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles',
+            'styles.xml'
+        );
+
+        // Relationship theme/theme1.xml
+        $this->writeRelationship(
+            $objWriter,
+            2,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme',
+            'theme/theme1.xml'
+        );
+
+        // Relationship sharedStrings.xml
+        $this->writeRelationship(
+            $objWriter,
+            3,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/sharedStrings',
+            'sharedStrings.xml'
+        );
+
+        // Relationships with sheets
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            $this->writeRelationship(
+                $objWriter,
+                ($i + 1 + 3),
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet',
+                'worksheets/sheet' . ($i + 1) . '.xml'
+            );
+        }
+        // Relationships for vbaProject if needed
+        // id : just after the last sheet
+        if ($spreadsheet->hasMacros()) {
+            $this->writeRelationShip(
+                $objWriter,
+                ($i + 1 + 3),
+                'http://schemas.microsoft.com/office/2006/relationships/vbaProject',
+                'vbaProject.bin'
+            );
+            ++$i; //increment i if needed for an another relation
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write worksheet relationships to XML format.
+     *
+     * Numbering is as follows:
+     *     rId1                 - Drawings
+     *  rId_hyperlink_x     - Hyperlinks
+     *
+     * @param int $pWorksheetId
+     * @param bool $includeCharts Flag indicating if we should write charts
+     *
+     * @return string XML Output
+     */
+    public function writeWorksheetRelationships(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet, $pWorksheetId = 1, $includeCharts = false)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+
+        // Write drawing relationships?
+        $drawingOriginalIds = [];
+        $unparsedLoadedData = $pWorksheet->getParent()->getUnparsedLoadedData();
+        if (isset($unparsedLoadedData['sheets'][$pWorksheet->getCodeName()]['drawingOriginalIds'])) {
+            $drawingOriginalIds = $unparsedLoadedData['sheets'][$pWorksheet->getCodeName()]['drawingOriginalIds'];
+        }
+
+        if ($includeCharts) {
+            $charts = $pWorksheet->getChartCollection();
+        } else {
+            $charts = [];
+        }
+
+        if (($pWorksheet->getDrawingCollection()->count() > 0) || (count($charts) > 0) || $drawingOriginalIds) {
+            $rId = 1;
+
+            // Use original $relPath to get original $rId.
+            // Take first. In future can be overwritten.
+            // (! synchronize with \PhpOffice\PhpSpreadsheet\Writer\Xlsx\Worksheet::writeDrawings)
+            reset($drawingOriginalIds);
+            $relPath = key($drawingOriginalIds);
+            if (isset($drawingOriginalIds[$relPath])) {
+                $rId = (int) (substr($drawingOriginalIds[$relPath], 3));
+            }
+
+            // Generate new $relPath to write drawing relationship
+            $relPath = '../drawings/drawing' . $pWorksheetId . '.xml';
+            $this->writeRelationship(
+                $objWriter,
+                $rId,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/drawing',
+                $relPath
+            );
+        }
+
+        // Write hyperlink relationships?
+        $i = 1;
+        foreach ($pWorksheet->getHyperlinkCollection() as $hyperlink) {
+            if (!$hyperlink->isInternal()) {
+                $this->writeRelationship(
+                    $objWriter,
+                    '_hyperlink_' . $i,
+                    'http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink',
+                    $hyperlink->getUrl(),
+                    'External'
+                );
+
+                ++$i;
+            }
+        }
+
+        // Write comments relationship?
+        $i = 1;
+        if (count($pWorksheet->getComments()) > 0) {
+            $this->writeRelationship(
+                $objWriter,
+                '_comments_vml' . $i,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing',
+                '../drawings/vmlDrawing' . $pWorksheetId . '.vml'
+            );
+
+            $this->writeRelationship(
+                $objWriter,
+                '_comments' . $i,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/comments',
+                '../comments' . $pWorksheetId . '.xml'
+            );
+        }
+
+        // Write header/footer relationship?
+        $i = 1;
+        if (count($pWorksheet->getHeaderFooter()->getImages()) > 0) {
+            $this->writeRelationship(
+                $objWriter,
+                '_headerfooter_vml' . $i,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing',
+                '../drawings/vmlDrawingHF' . $pWorksheetId . '.vml'
+            );
+        }
+
+        $this->writeUnparsedRelationship($pWorksheet, $objWriter, 'ctrlProps', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/ctrlProp');
+        $this->writeUnparsedRelationship($pWorksheet, $objWriter, 'vmlDrawings', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing');
+        $this->writeUnparsedRelationship($pWorksheet, $objWriter, 'printerSettings', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/printerSettings');
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    private function writeUnparsedRelationship(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet, XMLWriter $objWriter, $relationship, $type): void
+    {
+        $unparsedLoadedData = $pWorksheet->getParent()->getUnparsedLoadedData();
+        if (!isset($unparsedLoadedData['sheets'][$pWorksheet->getCodeName()][$relationship])) {
+            return;
+        }
+
+        foreach ($unparsedLoadedData['sheets'][$pWorksheet->getCodeName()][$relationship] as $rId => $value) {
+            $this->writeRelationship(
+                $objWriter,
+                $rId,
+                $type,
+                $value['relFilePath']
+            );
+        }
+    }
+
+    /**
+     * Write drawing relationships to XML format.
+     *
+     * @param int &$chartRef Chart ID
+     * @param bool $includeCharts Flag indicating if we should write charts
+     *
+     * @return string XML Output
+     */
+    public function writeDrawingRelationships(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet, &$chartRef, $includeCharts = false)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+
+        // Loop through images and write relationships
+        $i = 1;
+        $iterator = $pWorksheet->getDrawingCollection()->getIterator();
+        while ($iterator->valid()) {
+            if (
+                $iterator->current() instanceof \PhpOffice\PhpSpreadsheet\Worksheet\Drawing
+                || $iterator->current() instanceof MemoryDrawing
+            ) {
+                // Write relationship for image drawing
+                /** @var \PhpOffice\PhpSpreadsheet\Worksheet\Drawing $drawing */
+                $drawing = $iterator->current();
+                $this->writeRelationship(
+                    $objWriter,
+                    $i,
+                    'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image',
+                    '../media/' . str_replace(' ', '', $drawing->getIndexedFilename())
+                );
+
+                $i = $this->writeDrawingHyperLink($objWriter, $drawing, $i);
+            }
+
+            $iterator->next();
+            ++$i;
+        }
+
+        if ($includeCharts) {
+            // Loop through charts and write relationships
+            $chartCount = $pWorksheet->getChartCount();
+            if ($chartCount > 0) {
+                for ($c = 0; $c < $chartCount; ++$c) {
+                    $this->writeRelationship(
+                        $objWriter,
+                        $i++,
+                        'http://schemas.openxmlformats.org/officeDocument/2006/relationships/chart',
+                        '../charts/chart' . ++$chartRef . '.xml'
+                    );
+                }
+            }
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write header/footer drawing relationships to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeHeaderFooterDrawingRelationships(\PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $pWorksheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+
+        // Loop through images and write relationships
+        foreach ($pWorksheet->getHeaderFooter()->getImages() as $key => $value) {
+            // Write relationship for image drawing
+            $this->writeRelationship(
+                $objWriter,
+                $key,
+                'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image',
+                '../media/' . $value->getIndexedFilename()
+            );
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write Override content type.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param int $pId Relationship ID. rId will be prepended!
+     * @param string $pType Relationship type
+     * @param string $pTarget Relationship target
+     * @param string $pTargetMode Relationship target mode
+     */
+    private function writeRelationship(XMLWriter $objWriter, $pId, $pType, $pTarget, $pTargetMode = ''): void
+    {
+        if ($pType != '' && $pTarget != '') {
+            // Write relationship
+            $objWriter->startElement('Relationship');
+            $objWriter->writeAttribute('Id', 'rId' . $pId);
+            $objWriter->writeAttribute('Type', $pType);
+            $objWriter->writeAttribute('Target', $pTarget);
+
+            if ($pTargetMode != '') {
+                $objWriter->writeAttribute('TargetMode', $pTargetMode);
+            }
+
+            $objWriter->endElement();
+        } else {
+            throw new WriterException('Invalid parameters passed.');
+        }
+    }
+
+    /**
+     * @param $objWriter
+     * @param \PhpOffice\PhpSpreadsheet\Worksheet\Drawing $drawing
+     * @param $i
+     *
+     * @return int
+     */
+    private function writeDrawingHyperLink($objWriter, $drawing, $i)
+    {
+        if ($drawing->getHyperlink() === null) {
+            return $i;
+        }
+
+        ++$i;
+        $this->writeRelationship(
+            $objWriter,
+            $i,
+            'http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink',
+            $drawing->getHyperlink()->getUrl(),
+            $drawing->getHyperlink()->getTypeHyperlink()
+        );
+
+        return $i;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/RelsRibbon.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class RelsRibbon extends WriterPart
+{
+    /**
+     * Write relationships for additional objects of custom UI (ribbon).
+     *
+     * @return string XML Output
+     */
+    public function writeRibbonRelationships(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+        $localRels = $spreadsheet->getRibbonBinObjects('names');
+        if (is_array($localRels)) {
+            foreach ($localRels as $aId => $aTarget) {
+                $objWriter->startElement('Relationship');
+                $objWriter->writeAttribute('Id', $aId);
+                $objWriter->writeAttribute('Type', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/image');
+                $objWriter->writeAttribute('Target', $aTarget);
+                $objWriter->endElement();
+            }
+        }
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/RelsVBA.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class RelsVBA extends WriterPart
+{
+    /**
+     * Write relationships for a signed VBA Project.
+     *
+     * @return string XML Output
+     */
+    public function writeVBARelationships(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // Relationships
+        $objWriter->startElement('Relationships');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/package/2006/relationships');
+        $objWriter->startElement('Relationship');
+        $objWriter->writeAttribute('Id', 'rId1');
+        $objWriter->writeAttribute('Type', 'http://schemas.microsoft.com/office/2006/relationships/vbaProjectSignature');
+        $objWriter->writeAttribute('Target', 'vbaProjectSignature.bin');
+        $objWriter->endElement();
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/StringTable.php

@@ -0,0 +1,282 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Cell\DataType;
+use PhpOffice\PhpSpreadsheet\RichText\RichText;
+use PhpOffice\PhpSpreadsheet\RichText\Run;
+use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class StringTable extends WriterPart
+{
+    /**
+     * Create worksheet stringtable.
+     *
+     * @param Worksheet $pSheet Worksheet
+     * @param string[] $pExistingTable Existing table to eventually merge with
+     *
+     * @return string[] String table for worksheet
+     */
+    public function createStringTable(Worksheet $pSheet, $pExistingTable = null)
+    {
+        // Create string lookup table
+        $aStringTable = [];
+        $cellCollection = null;
+        $aFlippedStringTable = null; // For faster lookup
+
+        // Is an existing table given?
+        if (($pExistingTable !== null) && is_array($pExistingTable)) {
+            $aStringTable = $pExistingTable;
+        }
+
+        // Fill index array
+        $aFlippedStringTable = $this->flipStringTable($aStringTable);
+
+        // Loop through cells
+        foreach ($pSheet->getCoordinates() as $coordinate) {
+            $cell = $pSheet->getCell($coordinate);
+            $cellValue = $cell->getValue();
+            if (
+                !is_object($cellValue) &&
+                ($cellValue !== null) &&
+                $cellValue !== '' &&
+                !isset($aFlippedStringTable[$cellValue]) &&
+                ($cell->getDataType() == DataType::TYPE_STRING || $cell->getDataType() == DataType::TYPE_STRING2 || $cell->getDataType() == DataType::TYPE_NULL)
+            ) {
+                $aStringTable[] = $cellValue;
+                $aFlippedStringTable[$cellValue] = true;
+            } elseif (
+                $cellValue instanceof RichText &&
+                ($cellValue !== null) &&
+                !isset($aFlippedStringTable[$cellValue->getHashCode()])
+            ) {
+                $aStringTable[] = $cellValue;
+                $aFlippedStringTable[$cellValue->getHashCode()] = true;
+            }
+        }
+
+        return $aStringTable;
+    }
+
+    /**
+     * Write string table to XML format.
+     *
+     * @param string[] $pStringTable
+     *
+     * @return string XML Output
+     */
+    public function writeStringTable(array $pStringTable)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // String table
+        $objWriter->startElement('sst');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+        $objWriter->writeAttribute('uniqueCount', count($pStringTable));
+
+        // Loop through string table
+        foreach ($pStringTable as $textElement) {
+            $objWriter->startElement('si');
+
+            if (!$textElement instanceof RichText) {
+                $textToWrite = StringHelper::controlCharacterPHP2OOXML($textElement);
+                $objWriter->startElement('t');
+                if ($textToWrite !== trim($textToWrite)) {
+                    $objWriter->writeAttribute('xml:space', 'preserve');
+                }
+                $objWriter->writeRawData($textToWrite);
+                $objWriter->endElement();
+            } elseif ($textElement instanceof RichText) {
+                $this->writeRichText($objWriter, $textElement);
+            }
+
+            $objWriter->endElement();
+        }
+
+        $objWriter->endElement();
+
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write Rich Text.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param RichText $pRichText Rich text
+     * @param string $prefix Optional Namespace prefix
+     */
+    public function writeRichText(XMLWriter $objWriter, RichText $pRichText, $prefix = null): void
+    {
+        if ($prefix !== null) {
+            $prefix .= ':';
+        }
+
+        // Loop through rich text elements
+        $elements = $pRichText->getRichTextElements();
+        foreach ($elements as $element) {
+            // r
+            $objWriter->startElement($prefix . 'r');
+
+            // rPr
+            if ($element instanceof Run) {
+                // rPr
+                $objWriter->startElement($prefix . 'rPr');
+
+                // rFont
+                $objWriter->startElement($prefix . 'rFont');
+                $objWriter->writeAttribute('val', $element->getFont()->getName());
+                $objWriter->endElement();
+
+                // Bold
+                $objWriter->startElement($prefix . 'b');
+                $objWriter->writeAttribute('val', ($element->getFont()->getBold() ? 'true' : 'false'));
+                $objWriter->endElement();
+
+                // Italic
+                $objWriter->startElement($prefix . 'i');
+                $objWriter->writeAttribute('val', ($element->getFont()->getItalic() ? 'true' : 'false'));
+                $objWriter->endElement();
+
+                // Superscript / subscript
+                if ($element->getFont()->getSuperscript() || $element->getFont()->getSubscript()) {
+                    $objWriter->startElement($prefix . 'vertAlign');
+                    if ($element->getFont()->getSuperscript()) {
+                        $objWriter->writeAttribute('val', 'superscript');
+                    } elseif ($element->getFont()->getSubscript()) {
+                        $objWriter->writeAttribute('val', 'subscript');
+                    }
+                    $objWriter->endElement();
+                }
+
+                // Strikethrough
+                $objWriter->startElement($prefix . 'strike');
+                $objWriter->writeAttribute('val', ($element->getFont()->getStrikethrough() ? 'true' : 'false'));
+                $objWriter->endElement();
+
+                // Color
+                $objWriter->startElement($prefix . 'color');
+                $objWriter->writeAttribute('rgb', $element->getFont()->getColor()->getARGB());
+                $objWriter->endElement();
+
+                // Size
+                $objWriter->startElement($prefix . 'sz');
+                $objWriter->writeAttribute('val', $element->getFont()->getSize());
+                $objWriter->endElement();
+
+                // Underline
+                $objWriter->startElement($prefix . 'u');
+                $objWriter->writeAttribute('val', $element->getFont()->getUnderline());
+                $objWriter->endElement();
+
+                $objWriter->endElement();
+            }
+
+            // t
+            $objWriter->startElement($prefix . 't');
+            $objWriter->writeAttribute('xml:space', 'preserve');
+            $objWriter->writeRawData(StringHelper::controlCharacterPHP2OOXML($element->getText()));
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write Rich Text.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param RichText|string $pRichText text string or Rich text
+     * @param string $prefix Optional Namespace prefix
+     */
+    public function writeRichTextForCharts(XMLWriter $objWriter, $pRichText = null, $prefix = null): void
+    {
+        if (!$pRichText instanceof RichText) {
+            $textRun = $pRichText;
+            $pRichText = new RichText();
+            $pRichText->createTextRun($textRun);
+        }
+
+        if ($prefix !== null) {
+            $prefix .= ':';
+        }
+
+        // Loop through rich text elements
+        $elements = $pRichText->getRichTextElements();
+        foreach ($elements as $element) {
+            // r
+            $objWriter->startElement($prefix . 'r');
+
+            // rPr
+            $objWriter->startElement($prefix . 'rPr');
+
+            // Bold
+            $objWriter->writeAttribute('b', ($element->getFont()->getBold() ? 1 : 0));
+            // Italic
+            $objWriter->writeAttribute('i', ($element->getFont()->getItalic() ? 1 : 0));
+            // Underline
+            $underlineType = $element->getFont()->getUnderline();
+            switch ($underlineType) {
+                case 'single':
+                    $underlineType = 'sng';
+
+                    break;
+                case 'double':
+                    $underlineType = 'dbl';
+
+                    break;
+            }
+            $objWriter->writeAttribute('u', $underlineType);
+            // Strikethrough
+            $objWriter->writeAttribute('strike', ($element->getFont()->getStrikethrough() ? 'sngStrike' : 'noStrike'));
+
+            // rFont
+            $objWriter->startElement($prefix . 'latin');
+            $objWriter->writeAttribute('typeface', $element->getFont()->getName());
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+
+            // t
+            $objWriter->startElement($prefix . 't');
+            $objWriter->writeRawData(StringHelper::controlCharacterPHP2OOXML($element->getText()));
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Flip string table (for index searching).
+     *
+     * @param array $stringTable Stringtable
+     *
+     * @return array
+     */
+    public function flipStringTable(array $stringTable)
+    {
+        // Return value
+        $returnValue = [];
+
+        // Loop through stringtable and add flipped items to $returnValue
+        foreach ($stringTable as $key => $value) {
+            if (!$value instanceof RichText) {
+                $returnValue[$value] = $key;
+            } elseif ($value instanceof RichText) {
+                $returnValue[$value->getHashCode()] = $key;
+            }
+        }
+
+        return $returnValue;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Style.php

@@ -0,0 +1,676 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Style\Border;
+use PhpOffice\PhpSpreadsheet\Style\Borders;
+use PhpOffice\PhpSpreadsheet\Style\Conditional;
+use PhpOffice\PhpSpreadsheet\Style\Fill;
+use PhpOffice\PhpSpreadsheet\Style\Font;
+use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
+use PhpOffice\PhpSpreadsheet\Style\Protection;
+
+class Style extends WriterPart
+{
+    /**
+     * Write styles to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeStyles(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // styleSheet
+        $objWriter->startElement('styleSheet');
+        $objWriter->writeAttribute('xml:space', 'preserve');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+
+        // numFmts
+        $objWriter->startElement('numFmts');
+        $objWriter->writeAttribute('count', $this->getParentWriter()->getNumFmtHashTable()->count());
+
+        // numFmt
+        for ($i = 0; $i < $this->getParentWriter()->getNumFmtHashTable()->count(); ++$i) {
+            $this->writeNumFmt($objWriter, $this->getParentWriter()->getNumFmtHashTable()->getByIndex($i), $i);
+        }
+
+        $objWriter->endElement();
+
+        // fonts
+        $objWriter->startElement('fonts');
+        $objWriter->writeAttribute('count', $this->getParentWriter()->getFontHashTable()->count());
+
+        // font
+        for ($i = 0; $i < $this->getParentWriter()->getFontHashTable()->count(); ++$i) {
+            $this->writeFont($objWriter, $this->getParentWriter()->getFontHashTable()->getByIndex($i));
+        }
+
+        $objWriter->endElement();
+
+        // fills
+        $objWriter->startElement('fills');
+        $objWriter->writeAttribute('count', $this->getParentWriter()->getFillHashTable()->count());
+
+        // fill
+        for ($i = 0; $i < $this->getParentWriter()->getFillHashTable()->count(); ++$i) {
+            $this->writeFill($objWriter, $this->getParentWriter()->getFillHashTable()->getByIndex($i));
+        }
+
+        $objWriter->endElement();
+
+        // borders
+        $objWriter->startElement('borders');
+        $objWriter->writeAttribute('count', $this->getParentWriter()->getBordersHashTable()->count());
+
+        // border
+        for ($i = 0; $i < $this->getParentWriter()->getBordersHashTable()->count(); ++$i) {
+            $this->writeBorder($objWriter, $this->getParentWriter()->getBordersHashTable()->getByIndex($i));
+        }
+
+        $objWriter->endElement();
+
+        // cellStyleXfs
+        $objWriter->startElement('cellStyleXfs');
+        $objWriter->writeAttribute('count', 1);
+
+        // xf
+        $objWriter->startElement('xf');
+        $objWriter->writeAttribute('numFmtId', 0);
+        $objWriter->writeAttribute('fontId', 0);
+        $objWriter->writeAttribute('fillId', 0);
+        $objWriter->writeAttribute('borderId', 0);
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // cellXfs
+        $objWriter->startElement('cellXfs');
+        $objWriter->writeAttribute('count', count($spreadsheet->getCellXfCollection()));
+
+        // xf
+        foreach ($spreadsheet->getCellXfCollection() as $cellXf) {
+            $this->writeCellStyleXf($objWriter, $cellXf, $spreadsheet);
+        }
+
+        $objWriter->endElement();
+
+        // cellStyles
+        $objWriter->startElement('cellStyles');
+        $objWriter->writeAttribute('count', 1);
+
+        // cellStyle
+        $objWriter->startElement('cellStyle');
+        $objWriter->writeAttribute('name', 'Normal');
+        $objWriter->writeAttribute('xfId', 0);
+        $objWriter->writeAttribute('builtinId', 0);
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // dxfs
+        $objWriter->startElement('dxfs');
+        $objWriter->writeAttribute('count', $this->getParentWriter()->getStylesConditionalHashTable()->count());
+
+        // dxf
+        for ($i = 0; $i < $this->getParentWriter()->getStylesConditionalHashTable()->count(); ++$i) {
+            $this->writeCellStyleDxf($objWriter, $this->getParentWriter()->getStylesConditionalHashTable()->getByIndex($i)->getStyle());
+        }
+
+        $objWriter->endElement();
+
+        // tableStyles
+        $objWriter->startElement('tableStyles');
+        $objWriter->writeAttribute('defaultTableStyle', 'TableStyleMedium9');
+        $objWriter->writeAttribute('defaultPivotStyle', 'PivotTableStyle1');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write Fill.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param Fill $pFill Fill style
+     */
+    private function writeFill(XMLWriter $objWriter, Fill $pFill): void
+    {
+        // Check if this is a pattern type or gradient type
+        if (
+            $pFill->getFillType() === Fill::FILL_GRADIENT_LINEAR ||
+            $pFill->getFillType() === Fill::FILL_GRADIENT_PATH
+        ) {
+            // Gradient fill
+            $this->writeGradientFill($objWriter, $pFill);
+        } elseif ($pFill->getFillType() !== null) {
+            // Pattern fill
+            $this->writePatternFill($objWriter, $pFill);
+        }
+    }
+
+    /**
+     * Write Gradient Fill.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param Fill $pFill Fill style
+     */
+    private function writeGradientFill(XMLWriter $objWriter, Fill $pFill): void
+    {
+        // fill
+        $objWriter->startElement('fill');
+
+        // gradientFill
+        $objWriter->startElement('gradientFill');
+        $objWriter->writeAttribute('type', $pFill->getFillType());
+        $objWriter->writeAttribute('degree', $pFill->getRotation());
+
+        // stop
+        $objWriter->startElement('stop');
+        $objWriter->writeAttribute('position', '0');
+
+        // color
+        $objWriter->startElement('color');
+        $objWriter->writeAttribute('rgb', $pFill->getStartColor()->getARGB());
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // stop
+        $objWriter->startElement('stop');
+        $objWriter->writeAttribute('position', '1');
+
+        // color
+        $objWriter->startElement('color');
+        $objWriter->writeAttribute('rgb', $pFill->getEndColor()->getARGB());
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write Pattern Fill.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param Fill $pFill Fill style
+     */
+    private function writePatternFill(XMLWriter $objWriter, Fill $pFill): void
+    {
+        // fill
+        $objWriter->startElement('fill');
+
+        // patternFill
+        $objWriter->startElement('patternFill');
+        $objWriter->writeAttribute('patternType', $pFill->getFillType());
+
+        if ($pFill->getFillType() !== Fill::FILL_NONE) {
+            // fgColor
+            if ($pFill->getStartColor()->getARGB()) {
+                $objWriter->startElement('fgColor');
+                $objWriter->writeAttribute('rgb', $pFill->getStartColor()->getARGB());
+                $objWriter->endElement();
+            }
+        }
+        if ($pFill->getFillType() !== Fill::FILL_NONE) {
+            // bgColor
+            if ($pFill->getEndColor()->getARGB()) {
+                $objWriter->startElement('bgColor');
+                $objWriter->writeAttribute('rgb', $pFill->getEndColor()->getARGB());
+                $objWriter->endElement();
+            }
+        }
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write Font.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param Font $pFont Font style
+     */
+    private function writeFont(XMLWriter $objWriter, Font $pFont): void
+    {
+        // font
+        $objWriter->startElement('font');
+        //    Weird! The order of these elements actually makes a difference when opening Xlsx
+        //        files in Excel2003 with the compatibility pack. It's not documented behaviour,
+        //        and makes for a real WTF!
+
+        // Bold. We explicitly write this element also when false (like MS Office Excel 2007 does
+        // for conditional formatting). Otherwise it will apparently not be picked up in conditional
+        // formatting style dialog
+        if ($pFont->getBold() !== null) {
+            $objWriter->startElement('b');
+            $objWriter->writeAttribute('val', $pFont->getBold() ? '1' : '0');
+            $objWriter->endElement();
+        }
+
+        // Italic
+        if ($pFont->getItalic() !== null) {
+            $objWriter->startElement('i');
+            $objWriter->writeAttribute('val', $pFont->getItalic() ? '1' : '0');
+            $objWriter->endElement();
+        }
+
+        // Strikethrough
+        if ($pFont->getStrikethrough() !== null) {
+            $objWriter->startElement('strike');
+            $objWriter->writeAttribute('val', $pFont->getStrikethrough() ? '1' : '0');
+            $objWriter->endElement();
+        }
+
+        // Underline
+        if ($pFont->getUnderline() !== null) {
+            $objWriter->startElement('u');
+            $objWriter->writeAttribute('val', $pFont->getUnderline());
+            $objWriter->endElement();
+        }
+
+        // Superscript / subscript
+        if ($pFont->getSuperscript() === true || $pFont->getSubscript() === true) {
+            $objWriter->startElement('vertAlign');
+            if ($pFont->getSuperscript() === true) {
+                $objWriter->writeAttribute('val', 'superscript');
+            } elseif ($pFont->getSubscript() === true) {
+                $objWriter->writeAttribute('val', 'subscript');
+            }
+            $objWriter->endElement();
+        }
+
+        // Size
+        if ($pFont->getSize() !== null) {
+            $objWriter->startElement('sz');
+            $objWriter->writeAttribute('val', StringHelper::formatNumber($pFont->getSize()));
+            $objWriter->endElement();
+        }
+
+        // Foreground color
+        if ($pFont->getColor()->getARGB() !== null) {
+            $objWriter->startElement('color');
+            $objWriter->writeAttribute('rgb', $pFont->getColor()->getARGB());
+            $objWriter->endElement();
+        }
+
+        // Name
+        if ($pFont->getName() !== null) {
+            $objWriter->startElement('name');
+            $objWriter->writeAttribute('val', $pFont->getName());
+            $objWriter->endElement();
+        }
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write Border.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param Borders $pBorders Borders style
+     */
+    private function writeBorder(XMLWriter $objWriter, Borders $pBorders): void
+    {
+        // Write border
+        $objWriter->startElement('border');
+        // Diagonal?
+        switch ($pBorders->getDiagonalDirection()) {
+            case Borders::DIAGONAL_UP:
+                $objWriter->writeAttribute('diagonalUp', 'true');
+                $objWriter->writeAttribute('diagonalDown', 'false');
+
+                break;
+            case Borders::DIAGONAL_DOWN:
+                $objWriter->writeAttribute('diagonalUp', 'false');
+                $objWriter->writeAttribute('diagonalDown', 'true');
+
+                break;
+            case Borders::DIAGONAL_BOTH:
+                $objWriter->writeAttribute('diagonalUp', 'true');
+                $objWriter->writeAttribute('diagonalDown', 'true');
+
+                break;
+        }
+
+        // BorderPr
+        $this->writeBorderPr($objWriter, 'left', $pBorders->getLeft());
+        $this->writeBorderPr($objWriter, 'right', $pBorders->getRight());
+        $this->writeBorderPr($objWriter, 'top', $pBorders->getTop());
+        $this->writeBorderPr($objWriter, 'bottom', $pBorders->getBottom());
+        $this->writeBorderPr($objWriter, 'diagonal', $pBorders->getDiagonal());
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write Cell Style Xf.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param \PhpOffice\PhpSpreadsheet\Style\Style $pStyle Style
+     * @param Spreadsheet $spreadsheet Workbook
+     */
+    private function writeCellStyleXf(XMLWriter $objWriter, \PhpOffice\PhpSpreadsheet\Style\Style $pStyle, Spreadsheet $spreadsheet): void
+    {
+        // xf
+        $objWriter->startElement('xf');
+        $objWriter->writeAttribute('xfId', 0);
+        $objWriter->writeAttribute('fontId', (int) $this->getParentWriter()->getFontHashTable()->getIndexForHashCode($pStyle->getFont()->getHashCode()));
+        if ($pStyle->getQuotePrefix()) {
+            $objWriter->writeAttribute('quotePrefix', 1);
+        }
+
+        if ($pStyle->getNumberFormat()->getBuiltInFormatCode() === false) {
+            $objWriter->writeAttribute('numFmtId', (int) ($this->getParentWriter()->getNumFmtHashTable()->getIndexForHashCode($pStyle->getNumberFormat()->getHashCode()) + 164));
+        } else {
+            $objWriter->writeAttribute('numFmtId', (int) $pStyle->getNumberFormat()->getBuiltInFormatCode());
+        }
+
+        $objWriter->writeAttribute('fillId', (int) $this->getParentWriter()->getFillHashTable()->getIndexForHashCode($pStyle->getFill()->getHashCode()));
+        $objWriter->writeAttribute('borderId', (int) $this->getParentWriter()->getBordersHashTable()->getIndexForHashCode($pStyle->getBorders()->getHashCode()));
+
+        // Apply styles?
+        $objWriter->writeAttribute('applyFont', ($spreadsheet->getDefaultStyle()->getFont()->getHashCode() != $pStyle->getFont()->getHashCode()) ? '1' : '0');
+        $objWriter->writeAttribute('applyNumberFormat', ($spreadsheet->getDefaultStyle()->getNumberFormat()->getHashCode() != $pStyle->getNumberFormat()->getHashCode()) ? '1' : '0');
+        $objWriter->writeAttribute('applyFill', ($spreadsheet->getDefaultStyle()->getFill()->getHashCode() != $pStyle->getFill()->getHashCode()) ? '1' : '0');
+        $objWriter->writeAttribute('applyBorder', ($spreadsheet->getDefaultStyle()->getBorders()->getHashCode() != $pStyle->getBorders()->getHashCode()) ? '1' : '0');
+        $objWriter->writeAttribute('applyAlignment', ($spreadsheet->getDefaultStyle()->getAlignment()->getHashCode() != $pStyle->getAlignment()->getHashCode()) ? '1' : '0');
+        if ($pStyle->getProtection()->getLocked() != Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != Protection::PROTECTION_INHERIT) {
+            $objWriter->writeAttribute('applyProtection', 'true');
+        }
+
+        // alignment
+        $objWriter->startElement('alignment');
+        $objWriter->writeAttribute('horizontal', $pStyle->getAlignment()->getHorizontal());
+        $objWriter->writeAttribute('vertical', $pStyle->getAlignment()->getVertical());
+
+        $textRotation = 0;
+        if ($pStyle->getAlignment()->getTextRotation() >= 0) {
+            $textRotation = $pStyle->getAlignment()->getTextRotation();
+        } elseif ($pStyle->getAlignment()->getTextRotation() < 0) {
+            $textRotation = 90 - $pStyle->getAlignment()->getTextRotation();
+        }
+        $objWriter->writeAttribute('textRotation', $textRotation);
+
+        $objWriter->writeAttribute('wrapText', ($pStyle->getAlignment()->getWrapText() ? 'true' : 'false'));
+        $objWriter->writeAttribute('shrinkToFit', ($pStyle->getAlignment()->getShrinkToFit() ? 'true' : 'false'));
+
+        if ($pStyle->getAlignment()->getIndent() > 0) {
+            $objWriter->writeAttribute('indent', $pStyle->getAlignment()->getIndent());
+        }
+        if ($pStyle->getAlignment()->getReadOrder() > 0) {
+            $objWriter->writeAttribute('readingOrder', $pStyle->getAlignment()->getReadOrder());
+        }
+        $objWriter->endElement();
+
+        // protection
+        if ($pStyle->getProtection()->getLocked() != Protection::PROTECTION_INHERIT || $pStyle->getProtection()->getHidden() != Protection::PROTECTION_INHERIT) {
+            $objWriter->startElement('protection');
+            if ($pStyle->getProtection()->getLocked() != Protection::PROTECTION_INHERIT) {
+                $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
+            }
+            if ($pStyle->getProtection()->getHidden() != Protection::PROTECTION_INHERIT) {
+                $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
+            }
+            $objWriter->endElement();
+        }
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write Cell Style Dxf.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param \PhpOffice\PhpSpreadsheet\Style\Style $pStyle Style
+     */
+    private function writeCellStyleDxf(XMLWriter $objWriter, \PhpOffice\PhpSpreadsheet\Style\Style $pStyle): void
+    {
+        // dxf
+        $objWriter->startElement('dxf');
+
+        // font
+        $this->writeFont($objWriter, $pStyle->getFont());
+
+        // numFmt
+        $this->writeNumFmt($objWriter, $pStyle->getNumberFormat());
+
+        // fill
+        $this->writeFill($objWriter, $pStyle->getFill());
+
+        // alignment
+        $objWriter->startElement('alignment');
+        if ($pStyle->getAlignment()->getHorizontal() !== null) {
+            $objWriter->writeAttribute('horizontal', $pStyle->getAlignment()->getHorizontal());
+        }
+        if ($pStyle->getAlignment()->getVertical() !== null) {
+            $objWriter->writeAttribute('vertical', $pStyle->getAlignment()->getVertical());
+        }
+
+        if ($pStyle->getAlignment()->getTextRotation() !== null) {
+            $textRotation = 0;
+            if ($pStyle->getAlignment()->getTextRotation() >= 0) {
+                $textRotation = $pStyle->getAlignment()->getTextRotation();
+            } elseif ($pStyle->getAlignment()->getTextRotation() < 0) {
+                $textRotation = 90 - $pStyle->getAlignment()->getTextRotation();
+            }
+            $objWriter->writeAttribute('textRotation', $textRotation);
+        }
+        $objWriter->endElement();
+
+        // border
+        $this->writeBorder($objWriter, $pStyle->getBorders());
+
+        // protection
+        if (($pStyle->getProtection()->getLocked() !== null) || ($pStyle->getProtection()->getHidden() !== null)) {
+            if (
+                $pStyle->getProtection()->getLocked() !== Protection::PROTECTION_INHERIT ||
+                $pStyle->getProtection()->getHidden() !== Protection::PROTECTION_INHERIT
+            ) {
+                $objWriter->startElement('protection');
+                if (
+                    ($pStyle->getProtection()->getLocked() !== null) &&
+                    ($pStyle->getProtection()->getLocked() !== Protection::PROTECTION_INHERIT)
+                ) {
+                    $objWriter->writeAttribute('locked', ($pStyle->getProtection()->getLocked() == Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
+                }
+                if (
+                    ($pStyle->getProtection()->getHidden() !== null) &&
+                    ($pStyle->getProtection()->getHidden() !== Protection::PROTECTION_INHERIT)
+                ) {
+                    $objWriter->writeAttribute('hidden', ($pStyle->getProtection()->getHidden() == Protection::PROTECTION_PROTECTED ? 'true' : 'false'));
+                }
+                $objWriter->endElement();
+            }
+        }
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write BorderPr.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pName Element name
+     * @param Border $pBorder Border style
+     */
+    private function writeBorderPr(XMLWriter $objWriter, $pName, Border $pBorder): void
+    {
+        // Write BorderPr
+        if ($pBorder->getBorderStyle() != Border::BORDER_NONE) {
+            $objWriter->startElement($pName);
+            $objWriter->writeAttribute('style', $pBorder->getBorderStyle());
+
+            // color
+            $objWriter->startElement('color');
+            $objWriter->writeAttribute('rgb', $pBorder->getColor()->getARGB());
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write NumberFormat.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param NumberFormat $pNumberFormat Number Format
+     * @param int $pId Number Format identifier
+     */
+    private function writeNumFmt(XMLWriter $objWriter, NumberFormat $pNumberFormat, $pId = 0): void
+    {
+        // Translate formatcode
+        $formatCode = $pNumberFormat->getFormatCode();
+
+        // numFmt
+        if ($formatCode !== null) {
+            $objWriter->startElement('numFmt');
+            $objWriter->writeAttribute('numFmtId', ($pId + 164));
+            $objWriter->writeAttribute('formatCode', $formatCode);
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Get an array of all styles.
+     *
+     * @return \PhpOffice\PhpSpreadsheet\Style\Style[] All styles in PhpSpreadsheet
+     */
+    public function allStyles(Spreadsheet $spreadsheet)
+    {
+        return $spreadsheet->getCellXfCollection();
+    }
+
+    /**
+     * Get an array of all conditional styles.
+     *
+     * @return Conditional[] All conditional styles in PhpSpreadsheet
+     */
+    public function allConditionalStyles(Spreadsheet $spreadsheet)
+    {
+        // Get an array of all styles
+        $aStyles = [];
+
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            foreach ($spreadsheet->getSheet($i)->getConditionalStylesCollection() as $conditionalStyles) {
+                foreach ($conditionalStyles as $conditionalStyle) {
+                    $aStyles[] = $conditionalStyle;
+                }
+            }
+        }
+
+        return $aStyles;
+    }
+
+    /**
+     * Get an array of all fills.
+     *
+     * @return Fill[] All fills in PhpSpreadsheet
+     */
+    public function allFills(Spreadsheet $spreadsheet)
+    {
+        // Get an array of unique fills
+        $aFills = [];
+
+        // Two first fills are predefined
+        $fill0 = new Fill();
+        $fill0->setFillType(Fill::FILL_NONE);
+        $aFills[] = $fill0;
+
+        $fill1 = new Fill();
+        $fill1->setFillType(Fill::FILL_PATTERN_GRAY125);
+        $aFills[] = $fill1;
+        // The remaining fills
+        $aStyles = $this->allStyles($spreadsheet);
+        /** @var \PhpOffice\PhpSpreadsheet\Style\Style $style */
+        foreach ($aStyles as $style) {
+            if (!isset($aFills[$style->getFill()->getHashCode()])) {
+                $aFills[$style->getFill()->getHashCode()] = $style->getFill();
+            }
+        }
+
+        return $aFills;
+    }
+
+    /**
+     * Get an array of all fonts.
+     *
+     * @return Font[] All fonts in PhpSpreadsheet
+     */
+    public function allFonts(Spreadsheet $spreadsheet)
+    {
+        // Get an array of unique fonts
+        $aFonts = [];
+        $aStyles = $this->allStyles($spreadsheet);
+
+        /** @var \PhpOffice\PhpSpreadsheet\Style\Style $style */
+        foreach ($aStyles as $style) {
+            if (!isset($aFonts[$style->getFont()->getHashCode()])) {
+                $aFonts[$style->getFont()->getHashCode()] = $style->getFont();
+            }
+        }
+
+        return $aFonts;
+    }
+
+    /**
+     * Get an array of all borders.
+     *
+     * @return Borders[] All borders in PhpSpreadsheet
+     */
+    public function allBorders(Spreadsheet $spreadsheet)
+    {
+        // Get an array of unique borders
+        $aBorders = [];
+        $aStyles = $this->allStyles($spreadsheet);
+
+        /** @var \PhpOffice\PhpSpreadsheet\Style\Style $style */
+        foreach ($aStyles as $style) {
+            if (!isset($aBorders[$style->getBorders()->getHashCode()])) {
+                $aBorders[$style->getBorders()->getHashCode()] = $style->getBorders();
+            }
+        }
+
+        return $aBorders;
+    }
+
+    /**
+     * Get an array of all number formats.
+     *
+     * @return NumberFormat[] All number formats in PhpSpreadsheet
+     */
+    public function allNumberFormats(Spreadsheet $spreadsheet)
+    {
+        // Get an array of unique number formats
+        $aNumFmts = [];
+        $aStyles = $this->allStyles($spreadsheet);
+
+        /** @var \PhpOffice\PhpSpreadsheet\Style\Style $style */
+        foreach ($aStyles as $style) {
+            if ($style->getNumberFormat()->getBuiltInFormatCode() === false && !isset($aNumFmts[$style->getNumberFormat()->getHashCode()])) {
+                $aNumFmts[$style->getNumberFormat()->getHashCode()] = $style->getNumberFormat();
+            }
+        }
+
+        return $aNumFmts;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Theme.php

@@ -0,0 +1,837 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+
+class Theme extends WriterPart
+{
+    /**
+     * Map of Major fonts to write.
+     *
+     * @var array of string
+     */
+    private static $majorFonts = [
+        'Jpan' => 'ＭＳ Ｐゴシック',
+        'Hang' => '맑은 고딕',
+        'Hans' => '宋体',
+        'Hant' => '新細明體',
+        'Arab' => 'Times New Roman',
+        'Hebr' => 'Times New Roman',
+        'Thai' => 'Tahoma',
+        'Ethi' => 'Nyala',
+        'Beng' => 'Vrinda',
+        'Gujr' => 'Shruti',
+        'Khmr' => 'MoolBoran',
+        'Knda' => 'Tunga',
+        'Guru' => 'Raavi',
+        'Cans' => 'Euphemia',
+        'Cher' => 'Plantagenet Cherokee',
+        'Yiii' => 'Microsoft Yi Baiti',
+        'Tibt' => 'Microsoft Himalaya',
+        'Thaa' => 'MV Boli',
+        'Deva' => 'Mangal',
+        'Telu' => 'Gautami',
+        'Taml' => 'Latha',
+        'Syrc' => 'Estrangelo Edessa',
+        'Orya' => 'Kalinga',
+        'Mlym' => 'Kartika',
+        'Laoo' => 'DokChampa',
+        'Sinh' => 'Iskoola Pota',
+        'Mong' => 'Mongolian Baiti',
+        'Viet' => 'Times New Roman',
+        'Uigh' => 'Microsoft Uighur',
+        'Geor' => 'Sylfaen',
+    ];
+
+    /**
+     * Map of Minor fonts to write.
+     *
+     * @var array of string
+     */
+    private static $minorFonts = [
+        'Jpan' => 'ＭＳ Ｐゴシック',
+        'Hang' => '맑은 고딕',
+        'Hans' => '宋体',
+        'Hant' => '新細明體',
+        'Arab' => 'Arial',
+        'Hebr' => 'Arial',
+        'Thai' => 'Tahoma',
+        'Ethi' => 'Nyala',
+        'Beng' => 'Vrinda',
+        'Gujr' => 'Shruti',
+        'Khmr' => 'DaunPenh',
+        'Knda' => 'Tunga',
+        'Guru' => 'Raavi',
+        'Cans' => 'Euphemia',
+        'Cher' => 'Plantagenet Cherokee',
+        'Yiii' => 'Microsoft Yi Baiti',
+        'Tibt' => 'Microsoft Himalaya',
+        'Thaa' => 'MV Boli',
+        'Deva' => 'Mangal',
+        'Telu' => 'Gautami',
+        'Taml' => 'Latha',
+        'Syrc' => 'Estrangelo Edessa',
+        'Orya' => 'Kalinga',
+        'Mlym' => 'Kartika',
+        'Laoo' => 'DokChampa',
+        'Sinh' => 'Iskoola Pota',
+        'Mong' => 'Mongolian Baiti',
+        'Viet' => 'Arial',
+        'Uigh' => 'Microsoft Uighur',
+        'Geor' => 'Sylfaen',
+    ];
+
+    /**
+     * Map of core colours.
+     *
+     * @var array of string
+     */
+    private static $colourScheme = [
+        'dk2' => '1F497D',
+        'lt2' => 'EEECE1',
+        'accent1' => '4F81BD',
+        'accent2' => 'C0504D',
+        'accent3' => '9BBB59',
+        'accent4' => '8064A2',
+        'accent5' => '4BACC6',
+        'accent6' => 'F79646',
+        'hlink' => '0000FF',
+        'folHlink' => '800080',
+    ];
+
+    /**
+     * Write theme to XML format.
+     *
+     * @return string XML Output
+     */
+    public function writeTheme(Spreadsheet $spreadsheet)
+    {
+        // Create XML writer
+        $objWriter = null;
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // a:theme
+        $objWriter->startElement('a:theme');
+        $objWriter->writeAttribute('xmlns:a', 'http://schemas.openxmlformats.org/drawingml/2006/main');
+        $objWriter->writeAttribute('name', 'Office Theme');
+
+        // a:themeElements
+        $objWriter->startElement('a:themeElements');
+
+        // a:clrScheme
+        $objWriter->startElement('a:clrScheme');
+        $objWriter->writeAttribute('name', 'Office');
+
+        // a:dk1
+        $objWriter->startElement('a:dk1');
+
+        // a:sysClr
+        $objWriter->startElement('a:sysClr');
+        $objWriter->writeAttribute('val', 'windowText');
+        $objWriter->writeAttribute('lastClr', '000000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:lt1
+        $objWriter->startElement('a:lt1');
+
+        // a:sysClr
+        $objWriter->startElement('a:sysClr');
+        $objWriter->writeAttribute('val', 'window');
+        $objWriter->writeAttribute('lastClr', 'FFFFFF');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:dk2
+        $this->writeColourScheme($objWriter);
+
+        $objWriter->endElement();
+
+        // a:fontScheme
+        $objWriter->startElement('a:fontScheme');
+        $objWriter->writeAttribute('name', 'Office');
+
+        // a:majorFont
+        $objWriter->startElement('a:majorFont');
+        $this->writeFonts($objWriter, 'Cambria', self::$majorFonts);
+        $objWriter->endElement();
+
+        // a:minorFont
+        $objWriter->startElement('a:minorFont');
+        $this->writeFonts($objWriter, 'Calibri', self::$minorFonts);
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:fmtScheme
+        $objWriter->startElement('a:fmtScheme');
+        $objWriter->writeAttribute('name', 'Office');
+
+        // a:fillStyleLst
+        $objWriter->startElement('a:fillStyleLst');
+
+        // a:solidFill
+        $objWriter->startElement('a:solidFill');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gradFill
+        $objWriter->startElement('a:gradFill');
+        $objWriter->writeAttribute('rotWithShape', '1');
+
+        // a:gsLst
+        $objWriter->startElement('a:gsLst');
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '0');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '50000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '300000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '35000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '37000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '300000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '100000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '15000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '350000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:lin
+        $objWriter->startElement('a:lin');
+        $objWriter->writeAttribute('ang', '16200000');
+        $objWriter->writeAttribute('scaled', '1');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gradFill
+        $objWriter->startElement('a:gradFill');
+        $objWriter->writeAttribute('rotWithShape', '1');
+
+        // a:gsLst
+        $objWriter->startElement('a:gsLst');
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '0');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '51000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '130000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '80000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '93000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '130000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '100000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '94000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '135000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:lin
+        $objWriter->startElement('a:lin');
+        $objWriter->writeAttribute('ang', '16200000');
+        $objWriter->writeAttribute('scaled', '0');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:lnStyleLst
+        $objWriter->startElement('a:lnStyleLst');
+
+        // a:ln
+        $objWriter->startElement('a:ln');
+        $objWriter->writeAttribute('w', '9525');
+        $objWriter->writeAttribute('cap', 'flat');
+        $objWriter->writeAttribute('cmpd', 'sng');
+        $objWriter->writeAttribute('algn', 'ctr');
+
+        // a:solidFill
+        $objWriter->startElement('a:solidFill');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '95000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '105000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:prstDash
+        $objWriter->startElement('a:prstDash');
+        $objWriter->writeAttribute('val', 'solid');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:ln
+        $objWriter->startElement('a:ln');
+        $objWriter->writeAttribute('w', '25400');
+        $objWriter->writeAttribute('cap', 'flat');
+        $objWriter->writeAttribute('cmpd', 'sng');
+        $objWriter->writeAttribute('algn', 'ctr');
+
+        // a:solidFill
+        $objWriter->startElement('a:solidFill');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:prstDash
+        $objWriter->startElement('a:prstDash');
+        $objWriter->writeAttribute('val', 'solid');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:ln
+        $objWriter->startElement('a:ln');
+        $objWriter->writeAttribute('w', '38100');
+        $objWriter->writeAttribute('cap', 'flat');
+        $objWriter->writeAttribute('cmpd', 'sng');
+        $objWriter->writeAttribute('algn', 'ctr');
+
+        // a:solidFill
+        $objWriter->startElement('a:solidFill');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:prstDash
+        $objWriter->startElement('a:prstDash');
+        $objWriter->writeAttribute('val', 'solid');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:effectStyleLst
+        $objWriter->startElement('a:effectStyleLst');
+
+        // a:effectStyle
+        $objWriter->startElement('a:effectStyle');
+
+        // a:effectLst
+        $objWriter->startElement('a:effectLst');
+
+        // a:outerShdw
+        $objWriter->startElement('a:outerShdw');
+        $objWriter->writeAttribute('blurRad', '40000');
+        $objWriter->writeAttribute('dist', '20000');
+        $objWriter->writeAttribute('dir', '5400000');
+        $objWriter->writeAttribute('rotWithShape', '0');
+
+        // a:srgbClr
+        $objWriter->startElement('a:srgbClr');
+        $objWriter->writeAttribute('val', '000000');
+
+        // a:alpha
+        $objWriter->startElement('a:alpha');
+        $objWriter->writeAttribute('val', '38000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:effectStyle
+        $objWriter->startElement('a:effectStyle');
+
+        // a:effectLst
+        $objWriter->startElement('a:effectLst');
+
+        // a:outerShdw
+        $objWriter->startElement('a:outerShdw');
+        $objWriter->writeAttribute('blurRad', '40000');
+        $objWriter->writeAttribute('dist', '23000');
+        $objWriter->writeAttribute('dir', '5400000');
+        $objWriter->writeAttribute('rotWithShape', '0');
+
+        // a:srgbClr
+        $objWriter->startElement('a:srgbClr');
+        $objWriter->writeAttribute('val', '000000');
+
+        // a:alpha
+        $objWriter->startElement('a:alpha');
+        $objWriter->writeAttribute('val', '35000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:effectStyle
+        $objWriter->startElement('a:effectStyle');
+
+        // a:effectLst
+        $objWriter->startElement('a:effectLst');
+
+        // a:outerShdw
+        $objWriter->startElement('a:outerShdw');
+        $objWriter->writeAttribute('blurRad', '40000');
+        $objWriter->writeAttribute('dist', '23000');
+        $objWriter->writeAttribute('dir', '5400000');
+        $objWriter->writeAttribute('rotWithShape', '0');
+
+        // a:srgbClr
+        $objWriter->startElement('a:srgbClr');
+        $objWriter->writeAttribute('val', '000000');
+
+        // a:alpha
+        $objWriter->startElement('a:alpha');
+        $objWriter->writeAttribute('val', '35000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:scene3d
+        $objWriter->startElement('a:scene3d');
+
+        // a:camera
+        $objWriter->startElement('a:camera');
+        $objWriter->writeAttribute('prst', 'orthographicFront');
+
+        // a:rot
+        $objWriter->startElement('a:rot');
+        $objWriter->writeAttribute('lat', '0');
+        $objWriter->writeAttribute('lon', '0');
+        $objWriter->writeAttribute('rev', '0');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:lightRig
+        $objWriter->startElement('a:lightRig');
+        $objWriter->writeAttribute('rig', 'threePt');
+        $objWriter->writeAttribute('dir', 't');
+
+        // a:rot
+        $objWriter->startElement('a:rot');
+        $objWriter->writeAttribute('lat', '0');
+        $objWriter->writeAttribute('lon', '0');
+        $objWriter->writeAttribute('rev', '1200000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:sp3d
+        $objWriter->startElement('a:sp3d');
+
+        // a:bevelT
+        $objWriter->startElement('a:bevelT');
+        $objWriter->writeAttribute('w', '63500');
+        $objWriter->writeAttribute('h', '25400');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:bgFillStyleLst
+        $objWriter->startElement('a:bgFillStyleLst');
+
+        // a:solidFill
+        $objWriter->startElement('a:solidFill');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gradFill
+        $objWriter->startElement('a:gradFill');
+        $objWriter->writeAttribute('rotWithShape', '1');
+
+        // a:gsLst
+        $objWriter->startElement('a:gsLst');
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '0');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '40000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '350000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '40000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '45000');
+        $objWriter->endElement();
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '99000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '350000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '100000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '20000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '255000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:path
+        $objWriter->startElement('a:path');
+        $objWriter->writeAttribute('path', 'circle');
+
+        // a:fillToRect
+        $objWriter->startElement('a:fillToRect');
+        $objWriter->writeAttribute('l', '50000');
+        $objWriter->writeAttribute('t', '-80000');
+        $objWriter->writeAttribute('r', '50000');
+        $objWriter->writeAttribute('b', '180000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gradFill
+        $objWriter->startElement('a:gradFill');
+        $objWriter->writeAttribute('rotWithShape', '1');
+
+        // a:gsLst
+        $objWriter->startElement('a:gsLst');
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '0');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:tint
+        $objWriter->startElement('a:tint');
+        $objWriter->writeAttribute('val', '80000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '300000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:gs
+        $objWriter->startElement('a:gs');
+        $objWriter->writeAttribute('pos', '100000');
+
+        // a:schemeClr
+        $objWriter->startElement('a:schemeClr');
+        $objWriter->writeAttribute('val', 'phClr');
+
+        // a:shade
+        $objWriter->startElement('a:shade');
+        $objWriter->writeAttribute('val', '30000');
+        $objWriter->endElement();
+
+        // a:satMod
+        $objWriter->startElement('a:satMod');
+        $objWriter->writeAttribute('val', '200000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:path
+        $objWriter->startElement('a:path');
+        $objWriter->writeAttribute('path', 'circle');
+
+        // a:fillToRect
+        $objWriter->startElement('a:fillToRect');
+        $objWriter->writeAttribute('l', '50000');
+        $objWriter->writeAttribute('t', '50000');
+        $objWriter->writeAttribute('r', '50000');
+        $objWriter->writeAttribute('b', '50000');
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+
+        // a:objectDefaults
+        $objWriter->writeElement('a:objectDefaults', null);
+
+        // a:extraClrSchemeLst
+        $objWriter->writeElement('a:extraClrSchemeLst', null);
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write fonts to XML format.
+     *
+     * @param XMLWriter $objWriter
+     * @param string $latinFont
+     * @param array of string                $fontSet
+     *
+     * @return string XML Output
+     */
+    private function writeFonts($objWriter, $latinFont, $fontSet)
+    {
+        // a:latin
+        $objWriter->startElement('a:latin');
+        $objWriter->writeAttribute('typeface', $latinFont);
+        $objWriter->endElement();
+
+        // a:ea
+        $objWriter->startElement('a:ea');
+        $objWriter->writeAttribute('typeface', '');
+        $objWriter->endElement();
+
+        // a:cs
+        $objWriter->startElement('a:cs');
+        $objWriter->writeAttribute('typeface', '');
+        $objWriter->endElement();
+
+        foreach ($fontSet as $fontScript => $typeface) {
+            $objWriter->startElement('a:font');
+            $objWriter->writeAttribute('script', $fontScript);
+            $objWriter->writeAttribute('typeface', $typeface);
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write colour scheme to XML format.
+     *
+     * @param XMLWriter $objWriter
+     *
+     * @return string XML Output
+     */
+    private function writeColourScheme($objWriter)
+    {
+        foreach (self::$colourScheme as $colourName => $colourValue) {
+            $objWriter->startElement('a:' . $colourName);
+
+            $objWriter->startElement('a:srgbClr');
+            $objWriter->writeAttribute('val', $colourValue);
+            $objWriter->endElement();
+
+            $objWriter->endElement();
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Workbook.php

@@ -0,0 +1,225 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Shared\Date;
+use PhpOffice\PhpSpreadsheet\Shared\XMLWriter;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx\DefinedNames as DefinedNamesWriter;
+
+class Workbook extends WriterPart
+{
+    /**
+     * Write workbook to XML format.
+     *
+     * @param bool $recalcRequired Indicate whether formulas should be recalculated before writing
+     *
+     * @return string XML Output
+     */
+    public function writeWorkbook(Spreadsheet $spreadsheet, $recalcRequired = false)
+    {
+        // Create XML writer
+        if ($this->getParentWriter()->getUseDiskCaching()) {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_DISK, $this->getParentWriter()->getDiskCachingDirectory());
+        } else {
+            $objWriter = new XMLWriter(XMLWriter::STORAGE_MEMORY);
+        }
+
+        // XML header
+        $objWriter->startDocument('1.0', 'UTF-8', 'yes');
+
+        // workbook
+        $objWriter->startElement('workbook');
+        $objWriter->writeAttribute('xml:space', 'preserve');
+        $objWriter->writeAttribute('xmlns', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+        $objWriter->writeAttribute('xmlns:r', 'http://schemas.openxmlformats.org/officeDocument/2006/relationships');
+
+        // fileVersion
+        $this->writeFileVersion($objWriter);
+
+        // workbookPr
+        $this->writeWorkbookPr($objWriter);
+
+        // workbookProtection
+        $this->writeWorkbookProtection($objWriter, $spreadsheet);
+
+        // bookViews
+        if ($this->getParentWriter()->getOffice2003Compatibility() === false) {
+            $this->writeBookViews($objWriter, $spreadsheet);
+        }
+
+        // sheets
+        $this->writeSheets($objWriter, $spreadsheet);
+
+        // definedNames
+        (new DefinedNamesWriter($objWriter, $spreadsheet))->write();
+
+        // calcPr
+        $this->writeCalcPr($objWriter, $recalcRequired);
+
+        $objWriter->endElement();
+
+        // Return
+        return $objWriter->getData();
+    }
+
+    /**
+     * Write file version.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     */
+    private function writeFileVersion(XMLWriter $objWriter): void
+    {
+        $objWriter->startElement('fileVersion');
+        $objWriter->writeAttribute('appName', 'xl');
+        $objWriter->writeAttribute('lastEdited', '4');
+        $objWriter->writeAttribute('lowestEdited', '4');
+        $objWriter->writeAttribute('rupBuild', '4505');
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write WorkbookPr.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     */
+    private function writeWorkbookPr(XMLWriter $objWriter): void
+    {
+        $objWriter->startElement('workbookPr');
+
+        if (Date::getExcelCalendar() === Date::CALENDAR_MAC_1904) {
+            $objWriter->writeAttribute('date1904', '1');
+        }
+
+        $objWriter->writeAttribute('codeName', 'ThisWorkbook');
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write BookViews.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     */
+    private function writeBookViews(XMLWriter $objWriter, Spreadsheet $spreadsheet): void
+    {
+        // bookViews
+        $objWriter->startElement('bookViews');
+
+        // workbookView
+        $objWriter->startElement('workbookView');
+
+        $objWriter->writeAttribute('activeTab', $spreadsheet->getActiveSheetIndex());
+        $objWriter->writeAttribute('autoFilterDateGrouping', ($spreadsheet->getAutoFilterDateGrouping() ? 'true' : 'false'));
+        $objWriter->writeAttribute('firstSheet', $spreadsheet->getFirstSheetIndex());
+        $objWriter->writeAttribute('minimized', ($spreadsheet->getMinimized() ? 'true' : 'false'));
+        $objWriter->writeAttribute('showHorizontalScroll', ($spreadsheet->getShowHorizontalScroll() ? 'true' : 'false'));
+        $objWriter->writeAttribute('showSheetTabs', ($spreadsheet->getShowSheetTabs() ? 'true' : 'false'));
+        $objWriter->writeAttribute('showVerticalScroll', ($spreadsheet->getShowVerticalScroll() ? 'true' : 'false'));
+        $objWriter->writeAttribute('tabRatio', $spreadsheet->getTabRatio());
+        $objWriter->writeAttribute('visibility', $spreadsheet->getVisibility());
+
+        $objWriter->endElement();
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write WorkbookProtection.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     */
+    private function writeWorkbookProtection(XMLWriter $objWriter, Spreadsheet $spreadsheet): void
+    {
+        if ($spreadsheet->getSecurity()->isSecurityEnabled()) {
+            $objWriter->startElement('workbookProtection');
+            $objWriter->writeAttribute('lockRevision', ($spreadsheet->getSecurity()->getLockRevision() ? 'true' : 'false'));
+            $objWriter->writeAttribute('lockStructure', ($spreadsheet->getSecurity()->getLockStructure() ? 'true' : 'false'));
+            $objWriter->writeAttribute('lockWindows', ($spreadsheet->getSecurity()->getLockWindows() ? 'true' : 'false'));
+
+            if ($spreadsheet->getSecurity()->getRevisionsPassword() != '') {
+                $objWriter->writeAttribute('revisionsPassword', $spreadsheet->getSecurity()->getRevisionsPassword());
+            }
+
+            if ($spreadsheet->getSecurity()->getWorkbookPassword() != '') {
+                $objWriter->writeAttribute('workbookPassword', $spreadsheet->getSecurity()->getWorkbookPassword());
+            }
+
+            $objWriter->endElement();
+        }
+    }
+
+    /**
+     * Write calcPr.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param bool $recalcRequired Indicate whether formulas should be recalculated before writing
+     */
+    private function writeCalcPr(XMLWriter $objWriter, $recalcRequired = true): void
+    {
+        $objWriter->startElement('calcPr');
+
+        //    Set the calcid to a higher value than Excel itself will use, otherwise Excel will always recalc
+        //  If MS Excel does do a recalc, then users opening a file in MS Excel will be prompted to save on exit
+        //     because the file has changed
+        $objWriter->writeAttribute('calcId', '999999');
+        $objWriter->writeAttribute('calcMode', 'auto');
+        //    fullCalcOnLoad isn't needed if we've recalculating for the save
+        $objWriter->writeAttribute('calcCompleted', ($recalcRequired) ? 1 : 0);
+        $objWriter->writeAttribute('fullCalcOnLoad', ($recalcRequired) ? 0 : 1);
+        $objWriter->writeAttribute('forceFullCalc', ($recalcRequired) ? 0 : 1);
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write sheets.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     */
+    private function writeSheets(XMLWriter $objWriter, Spreadsheet $spreadsheet): void
+    {
+        // Write sheets
+        $objWriter->startElement('sheets');
+        $sheetCount = $spreadsheet->getSheetCount();
+        for ($i = 0; $i < $sheetCount; ++$i) {
+            // sheet
+            $this->writeSheet(
+                $objWriter,
+                $spreadsheet->getSheet($i)->getTitle(),
+                ($i + 1),
+                ($i + 1 + 3),
+                $spreadsheet->getSheet($i)->getSheetState()
+            );
+        }
+
+        $objWriter->endElement();
+    }
+
+    /**
+     * Write sheet.
+     *
+     * @param XMLWriter $objWriter XML Writer
+     * @param string $pSheetname Sheet name
+     * @param int $pSheetId Sheet id
+     * @param int $pRelId Relationship ID
+     * @param string $sheetState Sheet state (visible, hidden, veryHidden)
+     */
+    private function writeSheet(XMLWriter $objWriter, $pSheetname, $pSheetId = 1, $pRelId = 1, $sheetState = 'visible'): void
+    {
+        if ($pSheetname != '') {
+            // Write sheet
+            $objWriter->startElement('sheet');
+            $objWriter->writeAttribute('name', $pSheetname);
+            $objWriter->writeAttribute('sheetId', $pSheetId);
+            if ($sheetState !== 'visible' && $sheetState != '') {
+                $objWriter->writeAttribute('state', $sheetState);
+            }
+            $objWriter->writeAttribute('r:id', 'rId' . $pRelId);
+            $objWriter->endElement();
+        } else {
+            throw new WriterException('Invalid parameters passed.');
+        }
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/WriterPart.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+abstract class WriterPart
+{
+    /**
+     * Parent Xlsx object.
+     *
+     * @var Xlsx
+     */
+    private $parentWriter;
+
+    /**
+     * Get parent Xlsx object.
+     *
+     * @return Xlsx
+     */
+    public function getParentWriter()
+    {
+        return $this->parentWriter;
+    }
+
+    /**
+     * Set parent Xlsx object.
+     */
+    public function __construct(Xlsx $pWriter)
+    {
+        $this->parentWriter = $pWriter;
+    }
+}

vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Xlfn.php

@@ -0,0 +1,159 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+
+class Xlfn
+{
+    const XLFNREGEXP = '/(?<!_xlfn[.])\\b('
+            // functions added with Excel 2010
+        . 'beta[.]dist'
+        . '|beta[.]inv'
+        . '|binom[.]dist'
+        . '|binom[.]inv'
+        . '|chisq[.]dist'
+        . '|chisq[.]dist[.]rt'
+        . '|chisq[.]inv'
+        . '|chisq[.]inv[.]rt'
+        . '|chisq[.]test'
+        . '|confidence[.]norm'
+        . '|confidence[.]t'
+        . '|covariance[.]p'
+        . '|covariance[.]s'
+        . '|erf[.]precise'
+        . '|erfc[.]precise'
+        . '|expon[.]dist'
+        . '|f[.]dist'
+        . '|f[.]dist[.]rt'
+        . '|f[.]inv'
+        . '|f[.]inv[.]rt'
+        . '|f[.]test'
+        . '|gamma[.]dist'
+        . '|gamma[.]inv'
+        . '|gammaln[.]precise'
+        . '|lognorm[.]dist'
+        . '|lognorm[.]inv'
+        . '|mode[.]mult'
+        . '|mode[.]sngl'
+        . '|negbinom[.]dist'
+        . '|networkdays[.]intl'
+        . '|norm[.]dist'
+        . '|norm[.]inv'
+        . '|norm[.]s[.]dist'
+        . '|norm[.]s[.]inv'
+        . '|percentile[.]exc'
+        . '|percentile[.]inc'
+        . '|percentrank[.]exc'
+        . '|percentrank[.]inc'
+        . '|poisson[.]dist'
+        . '|quartile[.]exc'
+        . '|quartile[.]inc'
+        . '|rank[.]avg'
+        . '|rank[.]eq'
+        . '|stdev[.]p'
+        . '|stdev[.]s'
+        . '|t[.]dist'
+        . '|t[.]dist[.]2t'
+        . '|t[.]dist[.]rt'
+        . '|t[.]inv'
+        . '|t[.]inv[.]2t'
+        . '|t[.]test'
+        . '|var[.]p'
+        . '|var[.]s'
+        . '|weibull[.]dist'
+        . '|z[.]test'
+        // functions added with Excel 2013
+        . '|acot'
+        . '|acoth'
+        . '|arabic'
+        . '|averageifs'
+        . '|binom[.]dist[.]range'
+        . '|bitand'
+        . '|bitlshift'
+        . '|bitor'
+        . '|bitrshift'
+        . '|bitxor'
+        . '|ceiling[.]math'
+        . '|combina'
+        . '|cot'
+        . '|coth'
+        . '|csc'
+        . '|csch'
+        . '|days'
+        . '|dbcs'
+        . '|decimal'
+        . '|encodeurl'
+        . '|filterxml'
+        . '|floor[.]math'
+        . '|formulatext'
+        . '|gamma'
+        . '|gauss'
+        . '|ifna'
+        . '|imcosh'
+        . '|imcot'
+        . '|imcsc'
+        . '|imcsch'
+        . '|imsec'
+        . '|imsech'
+        . '|imsinh'
+        . '|imtan'
+        . '|isformula'
+        . '|iso[.]ceiling'
+        . '|isoweeknum'
+        . '|munit'
+        . '|numbervalue'
+        . '|pduration'
+        . '|permutationa'
+        . '|phi'
+        . '|rri'
+        . '|sec'
+        . '|sech'
+        . '|sheet'
+        . '|sheets'
+        . '|skew[.]p'
+        . '|unichar'
+        . '|unicode'
+        . '|webservice'
+        . '|xor'
+        // functions added with Excel 2016
+        . '|forecast[.]et2'
+        . '|forecast[.]ets[.]confint'
+        . '|forecast[.]ets[.]seasonality'
+        . '|forecast[.]ets[.]stat'
+        . '|forecast[.]linear'
+        . '|switch'
+        // functions added with Excel 2019
+        . '|concat'
+        . '|countifs'
+        . '|ifs'
+        . '|maxifs'
+        . '|minifs'
+        . '|sumifs'
+        . '|textjoin'
+        // functions added with Excel 365
+        . '|filter'
+        . '|randarray'
+        . '|sequence'
+        . '|sort'
+        . '|sortby'
+        . '|unique'
+        . '|xlookup'
+        . '|xmatch'
+        . ')(?=\\s*[(])/i';
+
+    /**
+     * Prefix function name in string with _xlfn. where required.
+     */
+    public static function addXlfn(string $funcstring): string
+    {
+        return preg_replace(self::XLFNREGEXP, '_xlfn.$1', $funcstring);
+    }
+
+    /**
+     * Prefix function name in string with _xlfn. where required.
+     * Leading character, expected to be equals sign, is stripped.
+     */
+    public static function addXlfnStripEquals(string $funcstring): string
+    {
+        return self::addXlfn(substr($funcstring, 1));
+    }
+}