“Excel found unreadable content” warning when opening Excel files made with PHPExcel

Question

I\'m trying to download Excel files (xlsx) using PHPExcel as follows.

require_once(\"../../phpExcel/Classes/PHPExcel.php\");
require_once(\"../../phpExcel/Cl         


        

Answer 1

I Put just exit; After

PHPExcel_IOFactory::createWriter($phpExcelObject, 'Excel2007')->save("php://output");

and it work's for me :)

   $file_name .= "_".\Carbon\Carbon::now()->format('d_m_Y_H_i').'.xlsx';

    // Prepare To Download
    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Disposition: attachment;filename='.$file_name);
    header('Cache-Control: max-age=0');
    header('Pragma: public');
    PHPExcel_IOFactory::createWriter($phpExcelObject, 'Excel2007')->save("php://output");
    exit;