: The .part17.rar suffix indicates this is not a standalone file. To access the contents, you must have all preceding and subsequent parts (part1, part2, etc.) in the same folder.

: RAR (Roshal Archive), which requires a compatible utility like WinRAR, 7-Zip, or The Unarchiver to open.

When large files (like high-definition maps, software installers, or database backups) are too big to host or download as a single unit, they are "split" using compression tools like WinRAR or 7-Zip.

: Move all parts (Part 1 through the final part) into a single directory on your computer.