The filename is likely a segmented archive from a The Sims 4 game repack provided by the well-known repacker DODI .
: You must have all parts of the sequence (part1, part2, ... through part10) in the same folder for the extraction to work. If one part is missing, the archive will be corrupted.
If you are working with this specific file, here is how to handle it properly:
: Great for gameplay mods that add realism or new mechanics.
: Right-click on part1.rar and select "Extract Here" using a tool like WinRAR or 7-Zip . The software will automatically detect and pull data from all subsequent parts, including part 10.