13:13:29 Create new PHPExcel object<br />13:13:29 Set document properties<br />13:13:29 Add data<br />13:13:29 Set data validation<br />13:13:29 Write to Excel2007 format<br />13:13:29 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0036 seconds<br />13:13:29 Current memory usage: 2 MB<br />13:13:29 Peak memory usage: 2 MB<br />13:13:29 Done writing file<br />File has been created in /var/www/html/vendor/phpoffice/phpexcel/Examples<br />