updated-packages

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));
+    }
+}