21:03:12 Create new PHPExcel object<br />21:03:12 Set document properties<br />21:03:12 Add data<br />21:03:12 Set data validation<br />21:03:12 Write to Excel5 format<br />21:03:12 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0132 seconds<br />21:03:12 Current memory usage: 2 MB<br />21:03:12 Peak memory usage: 2 MB<br />21:03:12 Done writing file<br />File has been created in /var/www/customs_rongma/vendor/phpoffice/phpexcel/Examples<br />