This add-on provides import and export support for the Mortal Kombat 9 (MK9) .SkeletalMesh model format. It allows users to bring MK9 meshes into Blender for modification and export them back into the game's native format.

The tool is a port of the original RER mod tool, updated to function with modern Blender versions. It facilitates game modding workflows by enabling direct handling of MK9 skeletal assets within the 3D viewport.