19:24:55 Create new PHPExcel object<br />19:24:55 Set document properties<br />19:24:55 Add data<br />19:24:55 Set data validation<br />19:24:55 Write to Excel5 format<br />19:24:55 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0188 seconds<br />19:24:55 Current memory usage: 2 MB<br />19:24:55 Peak memory usage: 2 MB<br />19:24:55 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />