Phpexcel xls file showing garbage data while downloading - php

Question

I am using PHPExcel 1.8.0 in my project. When I want to generate and download a .xls file with some data from my database, the file is downloaded with garbage data. Here is my code:
$result = mysql_query("select * from my_table");
ob_start();
//excel code
$this->load->library('excel');
//activate worksheet number 1
$this->excel->setActiveSheetIndex(0);
//name the worksheet
$this->excel->getActiveSheet()->setTitle('test worksheet');
$rowNumber = 5;
while ($row = mysql_fetch_assoc($result)) {
$col = 'B';
foreach ($fields as $cell) {
$this->excel->getActiveSheet()->setCellValue($col .$rowNumber, $row[$cell]);
$col++;
}
$rowNumber++;
}
// ob_end_clean();
// ob_clean() ;
$filename='report.xls'; //save our workbook as this file name
header('Content-Type: application/vnd.ms-excel'); //mime type
header('Content-Disposition: attachment;filename="'.$filename.'"');
header('Cache-Control: max-age=0'); //no cache
$objWriter = PHPExcel_IOFactory::createWriter($this->excel, 'Excel5');
$objWriter->save('php://output');
exit();
I have used both ob_end_clean() and ob_clean() but nothing works.

Answer 1

Try this code:
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
ob_end_clean();
$objWriter->save('php://output');