EDIT: Here's a script that exports smaller md5anim files and doesn't require baking: I tested this addon for importing and exporting md5.mesh and md5.anim in Blender: https://github.com/KozGit/Blender-2.8-MD5-import-export-addon It works with Blender 3.6.15 which is the latest version in the 3.0 series. It doesn't work with Blender 4.2. It seems that the culprit is the change in the 4.0 series from bone layers to bone collections. Here's an updated .blend file with male NPC an