12:36:46 Create new PHPExcel object<br />12:36:46 Set document properties<br />12:36:46 Add some data<br />12:36:46 Rename worksheet<br />12:36:46 Write to Excel2007 format<br />12:36:46 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0019 seconds<br />12:36:46 Current memory usage: 1.5 MB<br />12:36:46 Write to Excel5 format<br />12:36:46 File written to 01simple.xls<br />Call time to write Workbook was 0.1012 seconds<br />12:36:46 Current memory usage: 2 MB<br />12:36:46 Peak memory usage: 2 MB<br />12:36:46 Done writing files<br />Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />