Fatal error: Uncaught PHPExcel_Reader_Exception: Could not open C:/xampp/htdocs/project6/z/class/Doffice/wang.xlsx for reading! File does not exist. in C:\xampp\htdocs\project6\z\class\Doffice\PHPExcel\Reader\Excel2007.php:338 Stack trace: #0 C:\xampp\htdocs\BeiDou_website\z\class\Doffice\excel.php(27): PHPExcel_Reader_Excel2007->load('C:/xampp/htdocs...') #1 {main} thrown in C:\xampp\htdocs\project6\z\class\Doffice\PHPExcel\Reader\Excel2007.php on line 338