Fatal error: Uncaught Error: Class 'PHPExcel_Writer_Excel5_BIFFwriter' not found in C:\Apache24\htdocs\PortalUIS_bkp\excel\Spreadsheet\Excel\Classes\PHPExcel\Writer\Excel5\Workbook.php:71
Stack trace:
#0 {main}
thrown in C:\Apache24\htdocs\PortalUIS_bkp\excel\Spreadsheet\Excel\Classes\PHPExcel\Writer\Excel5\Workbook.php on line 71