This file name structure is commonly seen in the for sharing large game backups (NSP files) split into multiple compressed parts (RAR).
A template for sharing these files on a community forum (including system requirements, game info, and installation instructions). Persona 5 Royal (NSP)(US)(Converted).part2.rar
A draft asking for help with errors, such as a "missing part" or "corrupt archive" error specifically for Part 2. This file name structure is commonly seen in