11:23:31 Write to Excel2007 format<br />11:23:31 File written to 33chartcreate-column.xlsx<br />11:23:31 Peak memory usage: 2 MB<br />11:23:31 Done writing file<br />File has been created in /var/www/html/onswitch.neon/vendor/phpoffice/phpexcel/Examples<br />