08:19:45 Create new PHPExcel object<br />08:19:45 Set document properties<br />08:19:45 Add some data<br />08:19:45 Rename worksheet<br />08:19:45 Clone worksheet<br />08:19:45 Rename cloned worksheet<br />08:19:45 Write to Excel2007 format<br />08:19:45 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0221 seconds<br />08:19:45 Current memory usage: 6 MB<br />08:19:45 Peak memory usage: 6 MB<br />08:19:45 Done writing files<br />File has been created in /var/www/html/add/jhyj/laravel/vendor/phpoffice/phpexcel/Examples<br />