Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Cell\DataType' not found in /home/uralbox/public_html/vendor/phpoffice/phpspreadsheet/tests/data/Cell/SetValueExplicit.php:9 Stack trace: #0 {main} thrown in /home/uralbox/public_html/vendor/phpoffice/phpspreadsheet/tests/data/Cell/SetValueExplicit.php on line 9