What makes it impossible to rip from Skylanders?

[teammarie]

Hi! I have been thinking about ways to open files from Skylanders games and get the models! Problem is, I can't! I have looked at three games, Swap-Force, Trap Team and Superchragers Racing (all on Wii). SF had .PAK files that I STILL can't figure out how to open! TT had .ARC files with .IGZ model files and SR had .PKZ files! I see that these are confusing formats and all, but people figure out scripts and such for almost everything! So why is it impossible to rip from Skylanders? What is the cause?