Can't Import Custom Model from SFM Lab into SFM.

[crashDMC]

I'm new to SFM and I found these naked DevilMayCry models on the SFM Lab I wanted to use for an animation. 

here are links warning contains dicks!!!

https://sfmlab.com/project/26575/

https://sfmlab.com/project/28678/

https://sfmlab.com/project/28880/

I arranged it so the program would open the models and everything but they wont show up I know that SFM pretty much opens MDL files and i know the Nero model folder has one but the rest are PY and VTM files. 

Would anyone here be able to tell if they are actually models or Mods for a existing SFM model?