Bee Movie Game ripping help

I've been trying to rip the models from the Bee Movie Game, but I have had no dice so far.

I tried ripping from the PC Version, but DragonUnpacker only finds textures/audio files and no model files.

I then tried ripping from the Wii version of the game, but the files are stored in some kind of archive with a .xwi extension. 

Here is a sample file I have uploaded:
https://www.mediafire.com/?yx0h8rccu8190n5

Are there any other Wii games with this file fomat? Is there some kind of software I need to use to extract it? Help would be appreciated! 

EDIT: The PC Version has the files stored in .pak archives.