You must have every single part of the archive in the same folder before you begin. If you are missing even one part, the extraction will fail.
When downloading large games like The Outer Worlds , files are often split into multiple parts (e.g., part1.rar , part2.rar ) to make downloading easier. To correctly use these files, follow these steps:
The game tracks your experiences to find what you aren't good at. For example, if you are repeatedly attacked by Raptidons, you can take the "Raptiphobia" flaw, giving you a debuff when facing them but rewarding you with an immediate character perk.
Use WinRAR or 7-Zip to open the files.