12:29:06 Create new PHPExcel object<br />12:29:06 Set document properties<br />12:29:06 Add some data<br />12:29:06 Rename worksheet<br />12:29:06 Clone worksheet<br />12:29:06 Rename cloned worksheet<br />12:29:06 Write to Excel2007 format<br />12:29:06 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0124 seconds<br />12:29:06 Current memory usage: 4 MB<br />12:29:06 Peak memory usage: 4 MB<br />12:29:06 Done writing files<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />