A .3ds file is a file format used in 3D modeling and animation. It was originally created for the Autodesk 3D Studio software, which is now known as 3ds Max. The .3ds file format is used to store 3D models, materials, textures, and animations. It is widely supported in the 3D modeling and animation industry, and can be used in various software applications for creating and rendering 3D graphics. .3ds files can be imported into 3D modeling software for further editing, or used directly in 3D rendering software to create realistic images and animations. Overall, the .3ds file format plays a crucial role in the creation and sharing of 3D content in the digital world.