Fatal error: Uncaught Error: Class 'PHPExcel_Worksheet_Drawing' not found in C:\xampp\htdocs\BeiDou_website\z\third\PHPExcel\Worksheet\HeaderFooterDrawing.php:57 Stack trace: #0 C:\xampp\htdocs\BeiDou_website\z\third\PHPExcel\Worksheet\HeaderFooter.php(38): require_once() #1 C:\xampp\htdocs\BeiDou_website\z\third\PHPExcel\Worksheet.php(59): require_once('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\BeiDou_website\z\third\PHPExcel\Worksheet\Drawing.php(41): require_once('C:\\xampp\\htdocs...') #3 {main} thrown in C:\xampp\htdocs\BeiDou_website\z\third\PHPExcel\Worksheet\HeaderFooterDrawing.php on line 57