Select > Extract Here (or "Extract to..." to choose a folder).
7-Zip (free, recommended) or similar software like WinRAR. 2. How to Open/Extract It Download all parts of the archive to a single folder. Install 7-Zip on your computer. Right-click on the first file ( G21z.7z.001 ). G21z.7z.003
Do not try to extract part .003 directly; always start with part .001 . To make sure you get the right files, could you tell me: Did you download all the parts (001, 002, ...)? Select > Extract Here (or "Extract to