09:40:53 Create new PHPExcel object<br />09:40:53 Set document properties<br />09:40:53 Add some data<br />09:40:53 Rename worksheet<br />09:40:53 Clone worksheet<br />09:40:53 Rename cloned worksheet<br />09:40:53 Write to Excel2007 format<br />09:40:54 File written to 38cloneWorksheet.xlsx<br />Call time to write Workbook was 0.0315 seconds<br />09:40:54 Current memory usage: 6 MB<br />09:40:54 Peak memory usage: 6 MB<br />09:40:54 Done writing files<br />File has been created in /var/www/html/add/jiamei/laravel/vendor/phpoffice/phpexcel/Examples<br />