23:31:13 Create new PHPExcel object<br />23:31:13 Set document properties<br />23:31:13 Add some data<br />23:31:13 Rename worksheet<br />23:31:13 Clone worksheet<br />23:31:13 Rename cloned worksheet<br />23:31:13 Write to Excel2007 format<br />23:31:13 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0062 seconds<br />23:31:13 Current memory usage: 2 MB<br />23:31:13 Peak memory usage: 2 MB<br />23:31:13 Done writing files<br />File has been created in /var/www/billing.andrewpeng.net/vendor/turbo124/phpexcel/Examples<br />