Have no IDEA, But here is a *
I think a .krz file is a (working) tempy cross stitch file used by 3D/4D embroidery software. I don't think it can be embroidered out until it becomes a permanent one.
Someone answered that question for me and it is a file type used by 3D & 4D software used by Viking machines, I think. Hope that helps
I have 4D and do not believe it's for me I use SHV I think KRZ is for indutrial machines if you go to some of the industial sites you can check
I've no idea what KRZ is. Where did you come across it? Maybe I can help then.