: Multi-part archives were originally designed to fit onto physical media (like floppy disks or CDs) or to bypass file-size limits on FAT32 file systems and early cloud hosting services.
The RAR (Roshal Archive) format allows for "spanning" volumes. In this context: FINAL.FANTASY.XV.part13.rar
The Anatomy of a Fragment: A Case Study of "FINAL.FANTASY.XV.part13.rar" : Multi-part archives were originally designed to fit
: Part 13 is not a standalone entity. It contains a specific byte-range of the total game data. Without parts 1 through 12 and part 14 onwards, the data within part 13 is mathematically unusable. FINAL.FANTASY.XV.part13.rar
The original timestamps of the game's .earc or .pak files before they were packed. Conclusion