Fatal error: Uncaught Error: Class "PHPExcel_Worksheet_Dimension" not found in D:\xampp\htdocs\products\Classes\PHPExcel\Worksheet\RowDimension.php:28 Stack trace: #0 {main} thrown in D:\xampp\htdocs\products\Classes\PHPExcel\Worksheet\RowDimension.php on line 28