: This looks like a project code or a specific release ID. In many archival circles, "Special" prefixes are used for limited-run content, customized software builds, or "extra" features not found in a standard release.
: This suggests a sequential collection. There is almost certainly a PACK1 (and possibly a PACK3 ) containing related data. SPECIAL1097_PACK2.part1.rar
A collection of high-resolution 3D textures, 4K stock footage, or a high-fidelity sound library used in game development or film. : This looks like a project code or a specific release ID
Like a single shoe, part1 is useless without its pair. If you don't have part2 , the data is effectively a digital paperweight. customized software builds