Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Reader\BaseReader" not found in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Gnumeric.php:21
Stack trace:
#0 {main}
thrown in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Gnumeric.php on line 21