import a animation sepratly (without object) into unity

I want to just import a animation file (animated with a biped) into unity and use it right away.
I do not want to export the animation with the model (just saying)

My model I used in Unity already has some animations in it. Is it possible to add them sepratly? :face_with_spiral_eyes:

You need to separate those data before to export it.
It as has nothing to do with Unity.

Once youā€™ll export it correctly you can of course use both animation and model file into Unity without any difficult.