14:00:25 Write to Excel2007 format<br />14:00:25 File written to 33chartcreate-column-2.xlsx<br />14:00:25 Peak memory usage: 6.5 MB<br />14:00:25 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />