Could i use OpenXml for editing XPS Files?

Question

Hello, i guess OpenXml is designed for Office products, but editing XPS files with OpenXml is out of question?

Answer 1

Yes, it's not possible.

XPS and Office Open XML only have the container format in common. Which means that the APIs for dealing with the Open Packaging Convention will be useful; the ones dealing with the underlying file format of Office Open XML will not.

More specifically, XPS uses a subset of XAML, which is totally different (apart from the fact that it uses XML, too).