17:45:55 Create new PHPExcel object<br />17:45:55 Set document properties<br />17:45:55 Add data<br />17:45:55 Set data validation<br />17:45:55 Write to Excel2007 format<br />17:45:55 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0030 seconds<br />17:45:55 Current memory usage: 2 MB<br />17:45:55 Peak memory usage: 2 MB<br />17:45:55 Done writing file<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />