17:25:34 Create new PHPExcel object<br />17:25:34 Set document properties<br />17:25:34 Add data<br />17:25:34 Set data validation<br />17:25:34 Write to Excel5 format<br />17:25:34 File written to 15datavalidation-xls.xls<br />Call time to write Workbook was 0.0259 seconds<br />17:25:34 Current memory usage: 6.25 MB<br />17:25:34 Peak memory usage: 6.25 MB<br />17:25:34 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />