18:58:53 Create new PHPExcel object<br />18:58:53 Set document properties<br />18:58:53 Add some data<br />18:58:53 Rename worksheet<br />18:58:53 Clone worksheet<br />18:58:53 Rename cloned worksheet<br />18:58:53 Write to Excel2007 format<br />18:58:53 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0106 seconds<br />18:58:53 Current memory usage: 6 MB<br />18:58:53 Peak memory usage: 6 MB<br />18:58:53 Done writing files<br />File has been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />