Do you have of the file (e.g., .002, .003) ready for extraction?
: Right-click only the file ending in .001 , select "7-Zip," and choose "Extract to...". The software will automatically find and join the other parts to reconstruct the original file. Quick Software Review: 7-Zip T4.7z.001
To use this file, you cannot simply open it on its own; you must have (e.g., .7z.002 , .7z.003 ) in the same folder. How to Open .7z.001 Files Do you have of the file (e