Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Reader\Xml\Style\StyleBase" not found in D:\web\teleflex\tst\assets\phpspreadsheet\Reader\Xml\Style\Fill.php:8 Stack trace: #0 {main} thrown in D:\web\teleflex\tst\assets\phpspreadsheet\Reader\Xml\Style\Fill.php on line 8