12:05:29 Create new PHPExcel object<br />12:05:29 Set document properties<br />12:05:29 Add data<br />12:05:29 Set data validation<br />12:05:29 Write to Excel2007 format<br />12:05:29 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0030 seconds<br />12:05:29 Current memory usage: 2 MB<br />12:05:29 Peak memory usage: 2 MB<br />12:05:29 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />