Based on the naming convention of the file ( CuddleMocap.034 ), this appears to be raw motion capture data, likely from a repository intended for game development (such as Unity or Unreal Engine) or animation libraries.
, a VR-focused sandbox simulator. It is created by the user "CuddleMocap" and contains a pre-made animation or interactive scene. How to Install and Use the .var File CuddleMocap.034-Looping-Cowgirl.2.var