If you only have part .002, the extraction will fail. You must locate the .001 file to begin.
Decoding the Archive: Handling Multi-Part Files like Mia-FD-Mia-015a Mia-FD-Mia-015a.mp4.7z.002
The extension sequence .mp4.7z.002 tells us three important things: The original content is a video file. If you only have part
You cannot open part .002 on its own. To view the content, you need the full set: If you only have part .002