19:50:50 Create new PHPExcel object<br />19:50:50 Set document properties<br />19:50:50 Add some data<br />19:50:50 Rename worksheet<br />19:50:50 Clone worksheet<br />19:50:50 Rename cloned worksheet<br />19:50:50 Write to Excel2007 format<br />19:50:50 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0115 seconds<br />19:50:50 Current memory usage: 6 MB<br />19:50:50 Peak memory usage: 6 MB<br />19:50:50 Done writing files<br />File has been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />