Step #95 in the Total Overhaul list
This requires edited meshes or else it shows up shiny in game, please see the shiny meshes tips page for more information. The official OpenMW documentation covers this mod specifically, but I'd like to provide a patch if I can (someday).
You need to rename
textures/Apel_sack_01_n.dds - please see the file renames guide for more information.