15:10:19 Write to Excel2007 format<br />15:10:19 File written to 33chartcreate-column.xlsx<br />15:10:19 Peak memory usage: 5.5 MB<br />15:10:19 Done writing file<br />File has been created in /var/www/html/onswitch.neon/vendor/phpoffice/phpexcel/Examples<br />