Ripping .WAD files (Nicktoons Racing)

Hello,

I'm trying to rip the 3D models from Nicktoons Racing for the PC. 
I found them on the CD-ROM and they are in .WAD format, so I then tried to export a model in .obj with Noesis, but it can't recognize the format!

I'd like to have some help, please, it's my first time ripping models from a game.

Thanks in advance!