How do I make custom models and animations?

[TheBlazingmo]

So a few days ago, I mentioned something about lots of ideas for mods, one of which is creating odyssey animations (not an omm plugin) and I was wondering what program do people use to mod Models and Animations and how do they do it

 

[KukuRayz!]

try sm64ex-coops FAST 64! My friend ill always be here to help!