15:58:05 Create new PHPExcel object<br />15:58:05 Set document properties<br />15:58:05 Add some data<br />15:58:05 Rename worksheet<br />15:58:05 Clone worksheet<br />15:58:05 Rename cloned worksheet<br />15:58:05 Write to Excel2007 format<br />15:58:05 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0116 seconds<br />15:58:05 Current memory usage: 6 MB<br />15:58:05 Peak memory usage: 6 MB<br />15:58:05 Done writing files<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />