Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Functions" not found in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/tests/data/Calculation/Engineering/IMCOS.php:11
Stack trace:
#0 {main}
thrown in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/tests/data/Calculation/Engineering/IMCOS.php on line 11