14:08:58 Create new PHPExcel object<br />14:08:58 Set document properties<br />14:08:58 Add data<br />14:08:58 Set data validation<br />14:08:58 Write to Excel2007 format<br />14:08:58 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0099 seconds<br />14:08:58 Current memory usage: 6 MB<br />14:08:58 Peak memory usage: 6 MB<br />14:08:58 Done writing file<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />