Ensure you have part1.rar , part2.rar , and so on. If even one part is missing, the extraction will fail.
Right-click only the first file ( ...part1.rar ) and select "Extract Here" or "Extract to folder." The software will automatically pull data from part2 and the others. SPECIAL1193_PACK3.part2.rar
This filename refers to a , likely containing a game, software, or media collection. Ensure you have part1