Standard zip tools built into Windows or macOS often struggle with split 7z files. It is best to use: (Windows - Free/Open Source) Keka or The Unarchiver (macOS) 3. How to extract Ensure all parts (.001, .002, etc.) are in the same folder . Right-click only the first file (ending in .001 ). Select 7-Zip > Extract Here (or "Extract to Dog/").

You are likely missing a part (e.g., you have .001 and .003 but are missing .002).

Make sure you are right-clicking the .001 file, not the .002 file. The extraction must always start with the first volume.