7zip archive that contains the full compilation in one parent folder, so you can manually install the whole thing in the usual drag-and-drop-and-overwrite fashion. omod can only be used or extracted by Oblivion Mod Manager (OBMM). The first package is a scripted OMOD that will allow you to install all the textures or choose only specific ones to install.
InsanitySorrow has created a large number of high-resolution texture and normal map replacers for stock armor and weapons, compiled two ways for your convenience. Name: Insanity's Improved Armoury Compilation Note: FIle size is incorrectly displayed on the file page, the download sizes are: 900MB for the zipped archive or 1.2GB for the OMOD.