Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Reader\BaseReader' not found in C:\Web\htdocs\vendor-copia\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Reader\Xlsx.php:44 Stack trace: #0 {main} thrown in C:\Web\htdocs\vendor-copia\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Reader\Xlsx.php on line 44