21:54:40 Create new PHPExcel object<br />21:54:40 Set document properties<br />21:54:40 Add some data<br />21:54:40 Rename worksheet<br />21:54:40 Write to Excel2007 format<br />21:54:40 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0095 seconds<br />21:54:40 Current memory usage: 2 MB<br />21:54:40 Write to Excel5 format<br />21:54:40 File written to 01simple.xls<br />Call time to write Workbook was 0.0097 seconds<br />21:54:40 Current memory usage: 4 MB<br />21:54:40 Peak memory usage: 4 MB<br />21:54:40 Done writing files<br />Files have been created in /var/www/customs_rongma/vendor/phpoffice/phpexcel/Examples<br />