Fatal error: Uncaught Error: Class 'Box\Spout\Common\Helper\FileSystemHelper' not found in C:\laragon\www\test\vendor\box\spout\src\Spout\Writer\XLSX\Helper\FileSystemHelper.php:15 Stack trace: #0 {main} thrown in C:\laragon\www\test\vendor\box\spout\src\Spout\Writer\XLSX\Helper\FileSystemHelper.php on line 15