09:31:59 Write to Excel2007 format<br />09:31:59 File written to 33chartcreate-bar-stacked.xlsx<br />09:31:59 Peak memory usage: 1.75 MB<br />09:31:59 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />