There's no direct way to do that. I like the idea though.
The file export package is just a zip file. You can open it with any zip understanding program (e.g., 7zip).
The settings for your old app will be on disk under %appdata%\3dconnexion\3Dxware\cfg\<probably the name of your application>.xml
If the saved settings are applicable in the new application, you can copy them over with any text editor (e.g., Notepad++).
If they are specific to the app, or use entries from a different default file, it will be more involved.
It might help to know what the two apps are, but, in general, this is the procedure:
I suggest you run the new program.
Save something using in our GUI, e.g., a button assignment.
This will write a new file for you that is appropriate for your new application.
After that, you can copy all the <ButtonActions> and <Devices> sections from the old XML file to the new XML file.
You might need to PM the files to me if that doesn't work so easily.
