Create CustomUI xml with EPPLus

Nov 30, 2015 at 1:03 PM
Edited Nov 30, 2015 at 1:07 PM
Is it possible to generate customUI.xml with EPPLUS?
I need this for custom ribbon buttons.

This xml should be in the root when xlsm file is unpacked,
like here:

There are some ways to do this with vba
but I would like generate this customUI.xml with EPPLUS.

Can I write xml directly to ExcelPackage object somehow?