加载phpExcel，使过滤器列和颜色消失

I have a problem in PhpExcel 2007. The problem is, when I upload Excel to my directory and load it again, the header of Excel changes from blue into white (blank).

before:

before upload

after:

after upload

Excel successfully saved into my folder, but header sheet 1 turned into blank color (it must remain blue, like I uploaded).

$location="../test/tes.xlsx";
$objPHPExcel=PHPExcel_IOFactory::load($location);
$objPHPExcel->setActiveSheetIndex();
$objPHPExcel->createSheet();
$objPHPExcel->setActiveSheetIndex(2);
$objPHPExcel->getActiveSheet()->setCellValue('A1', 'Error !!!');
$objPHPExcel->getActiveSheet()->setTitle('Error Log');

header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="tes.xlsx"');
header('Cache-Control: max-age=0');

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save('php://output');
$objWriter->save("../testfolder/tes.xlsx");