SSE .LST tree LOD file is not a valid filetype and cannot be added to archive.exe

[AlexanderJVelicky]

I'm trying to include a "Meshes\Terrain\[Worldspace]\Trees\[Worldspace].LST" file in my archive.exe file list, but it won't let me add it because it says it is not valid. This file is vital to new worldspace mods and Tree LOD does not appear without it. Why isn't it allowed? Is there a way to add it to my archive with archive.exe or will I have to use a community tool to create all of my archives from now on like I had to with OG Skyrim? Thanks!