: For the extraction to work, all parts must be located in the same folder. If any part is missing or renamed incorrectly, the extraction will fail. How to Extract Part 1
The parts of a multipart RAR file are usually named "xyz. part1. rar", "yxz. part2. Part 1.rar
: Move every associated .rar file (part 1, part 2, etc.) into a single directory. : For the extraction to work, all parts