Choose "Extract here" or "Extract to..." in the 7-Zip menu. The software will automatically combine the parts and extract the final file. To give you a better write-up, I need to know:
It is recommended to use the 7-Zip utility for Windows, or apps like Unzip One or RAR Lab for other platforms. How to Extract KIA.7z.001
You cannot extract the contents from .001 alone. You must have all parts of the archive (001, 002, etc.) in the same folder before beginning extraction. Choose "Extract here" or "Extract to
of this file (e.g., is it firmware, a game, or a document)? Are you experiencing an error trying to open it? How to Extract .7z.001 files - Microsoft Q&A is it firmware