With Filestar you get 0 different skills for working productively with Unreal Animation Package (.ukx) files.
About .Ukx
Name
Unreal Animation Package
Extension
.ukx
Format
Binary
Category
Game
Developer
Epic Games
Description
A UKX file is an Unreal Engine animation package (magic C1 83 2A 9E) - skeletal animations of Unreal Tournament 2003/2004. Filestar extracts the textures it carries as PNG.