12:04:34 Create new PHPExcel object<br />12:04:34 Set document properties<br />12:04:34 Add some data<br />12:04:34 Rename worksheet<br />12:04:34 Clone worksheet<br />12:04:34 Rename cloned worksheet<br />12:04:34 Write to Excel2007 format<br />12:04:34 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0028 seconds<br />12:04:34 Current memory usage: 2 MB<br />12:04:34 Peak memory usage: 2 MB<br />12:04:34 Done writing files<br />File has been created in /home/webdemoo/se.webdemo258.io.vn/cms-demo/vendor/phpoffice/phpexcel/Examples<br />