If you are using these for gaming, they are likely in .hkx (Havok) or .fbx formats. You will likely need a framework (like FNIS or Nemesis for Bethesda games) to register and trigger these animations in-game.
These collections are known for providing a high volume of specific animations that aren't found in standard gameplay. File: VGerotica_animations_70-85.zip ...
Being a well-known series in the modding community, they are often pre-patched or supported by common animation loaders. If you are using these for gaming, they are likely in
Users typically report that older packs in this series vary in quality; some animations may have "clipping" issues where character models pass through each other, depending on the body replacers you have installed. Being a well-known series in the modding community,
Because this file is a specific archive typically found on niche modding hubs or file-sharing sites, a "useful review" depends on its technical compatibility and content quality: Content & Technical Overview