14:18:56 Write to Excel2007 format<br />14:18:56 File written to 33chartcreate-column-2.xlsx<br />14:18:56 Peak memory usage: 1.75 MB<br />14:18:56 Done writing file<br />File has been created in /var/www/yii2/vendor/phpoffice/phpexcel/Examples<br />