13:47:44 Create new PHPExcel object<br />13:47:44 Set document properties<br />13:47:44 Add some data<br />13:47:44 Rename worksheet<br />13:47:44 Write to Excel2007 format<br />13:47:44 File written to 01simple.xlsx<br />Call time to write Workbook was 0.0050 seconds<br />13:47:44 Current memory usage: 1.5 MB<br />13:47:44 Write to Excel5 format<br />13:47:44 File written to 01simple.xls<br />Call time to write Workbook was 0.0018 seconds<br />13:47:44 Current memory usage: 2 MB<br />13:47:44 Peak memory usage: 2 MB<br />13:47:44 Done writing files<br />Files have been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />