20:08:05 Create new PHPExcel object<br />20:08:05 Set document properties<br />20:08:05 Add some data<br />20:08:05 Rename worksheet<br />20:08:05 Clone worksheet<br />20:08:05 Rename cloned worksheet<br />20:08:05 Write to Excel2007 format<br />20:08:05 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0117 seconds<br />20:08:05 Current memory usage: 1.75 MB<br />20:08:05 Peak memory usage: 1.75 MB<br />20:08:05 Done writing files<br />File has been created in /home/hsinlung/public_html/core/vendor/phpoffice/phpexcel/Examples<br />