Creators on platforms like ArtStation or Free3D package models this way to ensure compatibility across different software.
This text likely refers to a commonly found on digital marketplaces or forums, where "solid post" is slang for a high-quality upload. It describes a compressed archive containing 3D models in the industry's two most universal formats: FBX OBJ.rar
Using pre-made "basemeshes" to jumpstart a sculpting or texturing project in software like 3ds Max . How to Open Them Creators on platforms like ArtStation or Free3D package
Importing ready-made 3D models into engines like Unity or Unreal Engine. and skeletal rigs.
A high-fidelity format by Autodesk that supports complex data like animation, textures, and skeletal rigs.