Extraction of incomplete .rar file

I added a torrent for download about a month ago which is in .rar format. Unfortunately, it doesn't seem to proceed any further than 91.01% due to unavailability of seeders.

Whenever I try to open or extract the torrent I get the following error:

An error occurred while loading the archive.

Command Line output:

??? - the file header is corrupt.

I am using archive manager to extract the file. Is there any possibility of extracting the file using any method?

First, if the header is corrupted or the header is password protected and you don't know the password, the program has no information about the content of the archive and is therefore unable to extract files.

Extracting with unrar and the keep broken extracted files option sometimes works, but it depends on the archive contents.

unrar x -kb example.rar

Advice for sharing files: Avoid zipping, nested zipping, splitting, remuxing, etcetera.