Are you trying to resolve missing assets in a specific 3D application, or

Generally refers to a creator or brand producing digital 3D models or scenes.

It is likely not a "paper" (document/article) in the academic sense, but a meta-data file listing external dependencies.

If you are trying to use this, this file ensures all necessary textures, models, and audio files are present, or it helps to identify what is missing.

Common file extension format for packaged assets (e.g., in Virt-A-Mate).

A text file listing the required dependencies for the main scene to function correctly.