16:51:09 Write to Excel2007 format<br />16:51:09 File written to 33chartcreate-column.xlsx<br />16:51:09 Peak memory usage: 6.5 MB<br />16:51:09 Done writing file<br />File has been created in /var/www/loyalworld_160326.bk/loyalworld/vendor/phpoffice/phpexcel/Examples<br />