23:11:17 Create new PHPExcel object<br />23:11:17 Set document properties<br />23:11:17 Add some data<br />23:11:17 Rename worksheet<br />23:11:17 Write to Excel2007 format<br />23:11:17 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0083 seconds<br />23:11:17 Current memory usage: 1.5 MB<br />23:11:17 Write to Excel5 format<br />23:11:17 File written to 01simple.xls<br />Call time to write Workbook was 0.0028 seconds<br />23:11:17 Current memory usage: 2 MB<br />23:11:17 Peak memory usage: 2 MB<br />23:11:17 Done writing files<br />Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />