23:13:28 Create new PHPExcel object<br />23:13:28 Set document properties<br />23:13:28 Add some data<br />23:13:28 Rename worksheet<br />23:13:28 Clone worksheet<br />23:13:28 Rename cloned worksheet<br />23:13:28 Write to Excel2007 format<br />23:13:28 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0106 seconds<br />23:13:28 Current memory usage: 6 MB<br />23:13:28 Peak memory usage: 6 MB<br />23:13:28 Done writing files<br />File has been created in /var/www/chart_maker/vendor/phpoffice/phpexcel/Examples<br />