Custom Metahuman (Unreal Engine File) to Maya

Hi there, I’m very new to Unreal Engine and I am a Maya user.

I’m not sure if this is the right place to ask, but I’ve recently received an Unreal Engine file with a custom-rigged metahuman file. (I’m guessing from the custom MetaHuman).
However, because I wasn’t the one who created this file, I cannot access it through “My Metahuman” and be able to export the complete rig to Maya.
When I just export it from Unreal, it only exports the mesh and bones without the face rig controllers.

Is there any way to export this file to Maya from Unreal and/or export it to Quixel Bridge and into Maya with ALL of the face and body rigs?

If anyone could give me answers or tips, it’ll be a great help!

Can’t export rigs between programs, so you can’t export the rigs with the fbx, only the bones and its animation. You need the original .ma or .mb file