- .ybn
- Bounds — GTA V file containing collision mesh and bounding data for world geometry.
- .ydd
- Drawable Dictionary — a collection of Drawables packed into a single GTA V asset file.
- .ydr
- Drawable — GTA V asset format containing a single 3D model. Can include a Texture Dictionary and up to 4 LODs.
- .yft
- Fragment — GTA V asset format containing a Drawable plus physics data and other metadata.
- .ymap
- MapData — GTA V file containing Entity placements that define where Archetypes are positioned in the world. Forms the LOD hierarchy.
- .ytd
- Texture Dictionary — GTA V asset format that stores texture data in DirectX format for GPU loading.
- .ytyp
- MapTypes — GTA V file containing a group of Archetypes, each defining a placeable object in the world.