Need a tutorial for Cannonfodder's Decompiler

i just would like someone to write a quick and detailed tutorial on how to use cannonfodders mdl decompiler. Found here: iv tried looking but havent found anything usefull.

Depends on what you are trying to do?

Like some models will work, but some wont. Team Fortress 2 and L4d models have to be done a different way compared to HL2/EP1/EP2 and Portal.