.ANIMSET File Extension

Facial animation file created by FaceFX, a program used for animating facial expressions in video games; often stores an animation that is synchronized with human speech audio; enables realistic lip-synching for virtual video game characters.

When you are finished designing an animation set, you can publish it to an .ANIMSET_INGAME file, which stores the stripped down version of the ANIMSET file that is suitable for use in the target game.