I'm afraid I don't. There's a tool that exists to convert .xpr to .emp, so just reversing what that does should be possible. I'm just not a tech guy and can't pull something like that off.
However, if you just need the textures (and not the whole model), you can extract them from the .emp file and inject them back into an .xpr file using GreedXplorer.
Let me bother you again. How did you correct the subs in DOA3? I can't find any tools that let me do anything to .xbe files other than changing the game title and just browsing the contents.
However, if you just need the textures (and not the whole model), you can extract them from the .emp file and inject them back into an .xpr file using GreedXplorer.