html table to excel in codeigniter using phpexcel

// Load the table view into a variable
$html = $this->load->view('table_view', $data, true);

// Put the html into a temporary file
$tmpfile = time().'.html';
file_put_contents($tmpfile, $html);

// Read the contents of the file into PHPExcel Reader class
$reader = new PHPExcel_Reader_HTML; 
$content = $reader->load($tmpfile); 

// Pass to writer and output as needed
$objWriter = PHPExcel_IOFactory::createWriter($content, 'Excel2007');
$objWriter->save('excelfile.xlsx');

// Delete temporary file
unlink($tmpfile);

IF error happend refer below,

ref links:  http://stackoverflow.com/questions/23562380/phpexcel-create-spreadsheet-from-html-table

http://stackoverflow.com/questions/25292596/phpexcel-reader-html-produces-empty-file

Edit line 427 of Classes/PHPExcel/Reader/HTML.php, which reads
$loaded = $dom->loadHTMLFile($pFilename, PHPExcel_Settings::getLibXmlLoaderOptions());

and change it to
$loaded = $dom->loadHTMLFile($pFilename);