12:37:51 Create new PHPExcel object<br />12:37:51 Set document properties<br />12:37:51 Add some data<br />12:37:51 Rename worksheet<br />12:37:51 Clone worksheet<br />12:37:51 Rename cloned worksheet<br />12:37:51 Write to Excel2007 format<br />12:37:51 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0515 seconds<br />12:37:51 Current memory usage: 4 MB<br />12:37:51 Peak memory usage: 4 MB<br />12:37:51 Done writing files<br />File has been created in D:\dev\vsk\vendor\phpoffice\phpexcel\Examples<br />