A web-based 3D design tool used to create interactive experiences, often used for web design and game prototypes.

It likely contains a folder with index.html , js files, and a scene.splinecode file.

Indicates the file likely contains a 3D environment or object designed for VR headsets or immersive web experiences.

You can often import the .splinecode or .spline file directly into the Spline App to see how the "splines," materials, and interactions were built.

You can often find assets like this on the Spline Community Gallery , where creators share .spline files and exported ZIP packages for others to study.