Rename the folder from "etc.7z.zip" to "etc.7z" and you should be able to open it. If you can't open a 7-zip folder, you're going to need a program that can open it. I recommend WinRAR for that.
If you can't see the .zip on the end of the filename (assuming you're using Windows) go to Tools -> Folder Options -> View and uncheck "hide extensions for known filetypes." (It's tools -> folder options in Windows 7 but I think it might be different in XP and Vista.)
- Don't hijack other people's help threads with your own questions.
- Don't bump old threads needlessly.
- Try to be at least somewhat coherent in your posts.
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