I've just finished V1 of a Blender Import/Export tool that supports Skyrim LE & SE and Fallout 4. Yes, you can import from SE and export to LE and it just works.   https://github.com/B...yNifly/releases   Features   Supports FO4, Skyrim LE, Skyrim SE. Import from one game and export to another with minimal twiddling (bone weights, partitions, shape keys). Handles tris and base mesh in one step. No need to separate UV seams or triangulate before exporting