07:37:20 Create new PHPExcel object<br />07:37:20 Set document properties<br />07:37:20 Add some data<br />07:37:20 Rename worksheet<br />07:37:20 Write to Excel2007 format<br />07:37:20 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0085 seconds<br />07:37:20 Current memory usage: 1.5 MB<br />07:37:20 Write to Excel5 format<br />07:37:20 File written to 01simple.xls<br />Call time to write Workbook was 0.0214 seconds<br />07:37:20 Current memory usage: 2 MB<br />07:37:20 Peak memory usage: 2 MB<br />07:37:20 Done writing files<br />Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />