addworksheet(); $worksheet->set_column(0, 50, 18); for ($col=0;$col<50;$col++) { for ($row=0;$row<6000;$row++) { $worksheet->write($row, $col, "ROW:$row COL:$col"); } } $workbook->close(); header("Content-Type: application/x-msexcel; name=\"example-bigfile.xls\""); header("Content-Disposition: inline; filename=\"example-bigfile.xls\""); $fh=fopen($fname, "rb"); fpassthru($fh); unlink($fname); ?>