16:09:50 Write to Excel2007 format<br />16:09:50 File written to 33chartcreate-column-2.xlsx<br />16:09:50 Peak memory usage: 6.75 MB<br />16:09:50 Done writing file<br />File has been created in /var/www/dolphinJuly25/dolphin/vendor/phpoffice/phpexcel/Examples<br />