Configuration Archive file not readable

7zip works for me.

 

 

What I usually do (this can perhaps be optimized but still :P) is to add .gzip to the filename then extract the file. Then add .tar to the extracted file and extract once more and there you will have the directories and files which the archive contains.

 

 

You might end up with 30-40 or so warnings/errors if you do this on a windowsbox but just ignore those.