The download for one of the parts was corrupted. Re-download the specific part causing the issue.

If you can tell me what is in the file (e.g., software, dataset, media) or what error message you are seeing, I can provide more specific instructions. How to format your blog: tips & examples - Wix.com

Ensure you have part1.rar , part2.rar , part3.rar (and so on) in the same folder . The extraction will fail if any parts are missing.

You are missing one of the subsequent .part files.