$arquivoDestino = path_do_arquivo_".xls";
    ob_end_clean();
   ini_set('zlib.output_compression','Off');
   header('Pragma: public');
   header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");                  // Date in the past
   header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
   header('Cache-Control: no-store, no-cache, must-revalidate');     // HTTP/1.1
   header('Cache-Control: pre-check=0, post-check=0, max-age=0');    // HTTP/1.1
   header ("Pragma: no-cache");
   header("Expires: 0");
   header('Content-Transfer-Encoding: none');
   header('Content-Type: application/vnd.ms-excel;');                 // This should work for IE & Opera
   header("Content-type: application/x-msexcel");                    // This should work for the rest
   header('Content-Disposition: attachment; filename="'.basename($arquivoDestino).'"');
   readfile($arquivoDestino);

$arquivoDestino = path_do_arquivo_".xls"; ob_end_clean(); ini_set('zlib.output_compression','Off'); header('Pragma: public'); header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT'); header('Cache-Control: no-store, no-cache, must-revalidate'); // HTTP/1.1 header('Cache-Control: pre-check=0, post-check=0, max-age=0'); // HTTP/1.1 header ("Pragma: no-cache"); header("Expires: 0"); header('Content-Transfer-Encoding: none'); header('Content-Type: application/vnd.ms-excel;'); // This should work for IE & Opera header("Content-type: application/x-msexcel"); // This should work for the rest header('Content-Disposition: attachment; filename="'.basename($arquivoDestino).'"'); readfile($arquivoDestino);