Using Excel Bundle in Laravel

gistfile1.txt

Route::get('excel', function(){
  $objPHPExcel = new PHPExcel();
    $sheet = $objPHPExcel->getActiveSheet();
    $sheet->setCellValue('A1','Test value');
    $writer = new PHPExcel_Writer_Excel5($objPHPExcel);
    $writer->save("test.xls");
    return Response::download('test.xls', 'test.xls');
});