17:32:32 Create new PHPExcel object<br />17:32:32 Set document properties<br />17:32:32 Add data<br />17:32:32 Set data validation<br />17:32:32 Write to Excel2007 format<br />17:32:32 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0086 seconds<br />17:32:32 Current memory usage: 6 MB<br />17:32:32 Peak memory usage: 6 MB<br />17:32:32 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />