Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Reader\Xls" not found in /home/fiberconfig/fcm.fiberconfig.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/DataValidationHelper.php:11
Stack trace:
#0 {main}
thrown in /home/fiberconfig/fcm.fiberconfig.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/DataValidationHelper.php on line 11