PHPExcel download excel file - php

Question

have a problem to download excel file. When im saving on server its worked ok. But when i try to download things goes wrong
enter code hererequire_once('Classes/PHPExcel.php');
$cacheMethod = PHPExcel_CachedObjectStorageFactory:: cache_to_phpTemp;
$cacheSettings = array( ' memoryCacheSize ' => '1024MB');
ini_set("memory_limit","-1");
ini_set('max_execution_time', 13600);
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);
// Create new PHPExcel object
$objPHPExcel = new PHPExcel();
// Set document properties
$objPHPExcel->getProperties()->setCreator("Techizer")
->setLastModifiedBy("Techizer")
->setTitle("Office 2007 XLSX Test Document")
->setSubject("Office 2007 XLSX Test Document")
->setCategory("Test result file");
if($file=="employer")
{
// Rename worksheet
$file = 'employer';
$objPHPExcel->getActiveSheet()->setTitle($file);
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A1','Employer Name')
->setCellValue('B1','Emp ID')
->setCellValue('C1','Designation')
->setCellValue('D1','Zone')
->setCellValue('E1','Password');
$query = $this->session->userdata('employ');
$query = preg_replace('/LIMIT.*/', '', $query);
$res = $this->common_model->execute_query($query);
$row = 2;
foreach($res as $result)
{
$objPHPExcel->setActiveSheetIndex(0)
->setCellValue('A'.$row,$result->profile_name)
->setCellValue('B'.$row,$result->profile_empid)
->setCellValue('C'.$row,$result->profile_desig)
->setCellValue('D'.$row,$result->profile_zone)
->setCellValue('E'.$row,$result->profile_pass);
$row++;
}
header('Content-Disposition: attachment;filename=Employer list'.date("Y-m-d").'.xls');
}
// Set active sheet index to the first sheet, so Excel opens this as the first sheet
$objPHPExcel->setActiveSheetIndex(0);
// Redirect output to a client’s web browser (Excel5)
header('Content-Type: application/vnd.ms-excel');
//header('Content-Disposition: attachment;filename=report.xls');
header('Cache-Control: max-age=0');
// If you're serving to IE 9, then the following may be needed
header('Cache-Control: max-age=1');
// If you're serving to IE over SSL, then the following may be needed
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
header ('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
header ('Cache-Control: cache, must-revalidate'); // HTTP/1.1
header ('Pragma: public'); // HTTP/1.0
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
exit;
it gives an excel file with this content:
PK–jGG’D²Xð[Content_Types].xml­”MNÃ0…÷œ"ò%nY