จะ include open template excel เข้ามาใช้ใน PHP ยังไงค่ะ

<?

$AdminStatus = CheckAdminStatus();
/** Error reporting */
error_reporting(E_ALL);


/** PHPExcel_IOFactory */
require_once 'Classes/PHPExcel/IOFactory.php';

$objReader = PHPExcel_IOFactory::createReader('Excel5');
$objPHPExcel = $objReader->load("templates/report_template.xls");


$objPHPExcel->getActiveSheet()->setCellValue('A1', ''.iconv('TIS-620','UTF-8'," รายงานข้อมูลการจัดซื้อ").''); 

$objPHPExcel->getActiveSheet()->setCellValue('F2',"2000");



$strFileName = "REPORT-".date("YmdHis").".xls";

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save("excel/".$strFileName);

?>