$PHPExcel = new \PHPExcel();
$PHPSheet = $PHPExcel->getActiveSheet();
$PHPSheet->setTitle("demo"); //给当前活动sheet设置名称
$PHPSheet->setCellValue("A1","姓名")->setCellValue("B1","分数");//表格数据
$PHPSheet->setCellValue("A2","张三")->setCellValue("B2","2121");//表格数据
header('Content-Type: application/vnd.ms-excel; charset=utf-8');
header('Content-Disposition: attachment;filename="123.xls"');
header('Cache-Control: max-age=0');
$objWriter = \PHPExcel_IOFactory::createWriter($PHPExcel, 'Excel2007');
$objWriter->save('php://output'); //文件通过浏览器下载
请问有什么问题吗?