unpacking 7z files

[emus]

Hi everyone,

I downloaded the Linux version of 7-zip
http://www.7-zip.org/

I have a .7z file I can't uncompress though.

I tried both function letters "e" and "x", but I always get the error that my file isn't a supported archive.

"Error: documentsBak.7z is not supported archive"

I doubt my file is corrupt, I've already tried unpacking a different one.

Does anyone know how to use this program correctly?

according to man 7za, e and x are supposed to extract data.

FUNCTION LETTERS
a Add

d Delete

e Extract

l List

t Test

u Update

x eXtract with full paths

[bigrigdriver]

I suggest the possibility that the documentsBAK.7z file is not an archive, but a file which somehow acquired the .7z extension. Try renaming the file without the extension, and see if it opens as a text file or some other non-zip file.

[emus]

Thanks for the reply bigrigdriver.

Initially I thought the extension was wrong and tried to open it by assigning a different extension, but I have several files all stored as 7z, so I'm pretty sure the extension is meant to be 7z.

Thanks again, I'll post back if I get it working.