fixes

app/Exports/UserExport.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Exports;
+
+use Maatwebsite\Excel\Concerns\FromArray;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+
+class UserExport implements FromArray, WithHeadings
+{
+    public $data;
+
+    public function __construct($data)
+    {
+        $this->data = $data;
+    }
+
+    public function headings(): array
+    {
+        return ['Username', 'Email', 'Firstname', 'Lastname', 'Organization'];
+    }
+
+    public function array(): array
+    {
+        return $this->data;
+    }
+}