22:48:52 Create new PHPExcel object<br />22:48:52 Set document properties<br />22:48:52 Add data<br />22:48:52 Set data validation<br />22:48:52 Write to Excel2007 format<br />22:48:53 File written to 15datavalidation.xlsx<br />Call time to write Workbook was 0.0109 seconds<br />22:48:53 Current memory usage: 4 MB<br />22:48:53 Peak memory usage: 4 MB<br />22:48:53 Done writing file<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />