22:47:42 Create new PHPExcel object<br />22:47:42 Set document properties<br />22:47:42 Add some data<br />22:47:42 Rename worksheet<br />22:47:42 Clone worksheet<br />22:47:42 Rename cloned worksheet<br />22:47:42 Write to Excel2007 format<br />22:47:42 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0100 seconds<br />22:47:42 Current memory usage: 4 MB<br />22:47:42 Peak memory usage: 4 MB<br />22:47:42 Done writing files<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />