19:50:07 Create new PHPExcel object<br />19:50:07 Set document properties<br />19:50:07 Add some data<br />19:50:07 Rename worksheet<br />19:50:07 Write to Excel2007 format<br />19:50:07 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0122 seconds<br />19:50:07 Current memory usage: 4 MB<br />19:50:07 Write to Excel5 format<br />19:50:07 File written to 01simple.xls<br />Call time to write Workbook was 0.0101 seconds<br />19:50:07 Current memory usage: 6 MB<br />19:50:07 Peak memory usage: 6 MB<br />19:50:07 Done writing files<br />Files have been created in /var/www/customs_yiao/vendor/phpoffice/phpexcel/Examples<br />