Fatal error: Uncaught Error: Class "PHPExcel_Shared_File" not found in C:\xampp\htdocs\BK\bateriasec\vendor\phpoffice\phpexcel\Classes\PHPExcel\Shared\ZipArchive.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\phpoffice\phpexcel\Classes\PHPExcel\Shared\ZipArchive.php on line 4