08:21:00 Create new PHPExcel object<br />08:21:00 Set document properties<br />08:21:00 Add some data<br />08:21:00 Rename worksheet<br />08:21:00 Clone worksheet<br />08:21:00 Rename cloned worksheet<br />08:21:00 Write to Excel2007 format<br />08:21:00 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0141 seconds<br />08:21:00 Current memory usage: 6 MB<br />08:21:00 Peak memory usage: 6 MB<br />08:21:00 Done writing files<br />File has been created in /var/www/html/lcyj_sub/mbn/laravel/vendor/phpoffice/phpexcel/Examples<br />