16:11:38 Create new PHPExcel object<br />16:11:38 Set document properties<br />16:11:38 Add data<br />16:11:38 Set data validation<br />16:11:38 Write to Excel2007 format<br />16:11:38 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0106 seconds<br />16:11:38 Current memory usage: 6 MB<br />16:11:38 Peak memory usage: 6 MB<br />16:11:38 Done writing file<br />File has been created in /var/www/customs_rongma/vendor/phpoffice/phpexcel/Examples<br />