To help narrow down the specific cause of your extraction issue, please let me know:
Eli looked at the monolith, now dark and inert. The ghost was gone.
If you are using 7-Zip and it fails, try using WinRAR. WinRAR is occasionally more forgiving with fragmented RAR headers. Advanced Fix: How to Extract a Broken Archive
Sometimes, files split using a specialized tool (like 7-Zip or WinRAR) require that same tool to be extracted. Attempting to use a default Windows utility on a complex, multi-part RAR file may cause this error.
This error message is a classic digital roadblock, usually encountered when unzipping a large file that has been split into multiple parts (like .part1.rar .part2.rar