15:08:27 Write to Excel2007 format<br />15:08:27 File written to 33chartcreate-column.xlsx<br />15:08:27 Peak memory usage: 2 MB<br />15:08:27 Done writing file<br />File has been created in /var/www/html/onswitch.neon.service/vendor/phpoffice/phpexcel/Examples<br />