I wish there was an option to get the animation as a file that can be edit.
Such option already exists. You can download the animation as FBX, BVH or GLB.
I use Unity, and the animation in the FBX file is read only, it look like the animation file can not be seperated from the FBX. Maybe BVH or GLB is a seperate animation file ? Any guide how to get the animation file editable ?
We have a tutorial for how to retarget your animations in unity here: https://www.youtube.com/watch?v=Y2l96l_VX3Q
Let us know if you have any further questions once you take a look!