17:24:57 Write to Excel2007 format<br />17:24:57 File written to 33chartcreate-column-2.xlsx<br />17:24:57 Peak memory usage: 6.5 MB<br />17:24:57 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />