If you encountered this in a specific community (e.g., a gaming mod site, a private GitHub repo, or a digital forensic course), it may be a targeted collection of files for a particular lesson or project.
To help me identify exactly what this "piece" should cover, could you tell me:
(e.g., a developer, an artist, or a researcher?)
In academic or data-sharing circles, authors often package their supplementary materials or code under their name.
The specific file is not a widely documented public archive or a standard dataset in general tech, art, or forensic databases.