Textures ( .dds ), Meshes ( .nif ), Audio ( .wav , .xwm ), and standard Animations ( .hkx ).
: Consolidating assets into a single archive prevents the Data folder from becoming cluttered and simplifies mod management. Common Tools for Repacking loose vs bsa files - General Skyrim LE Support - Step Mods skyrim se patchbsa repack
Skyrim SE uses (or the later BSAv3 for some Creation Club content) archives. These are container files holding game assets (meshes, textures, scripts, sounds, etc.). Textures (