Move every numbered part into the same folder on your computer. If even one part is missing, the extraction will fail. 2. Install the Right Software
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. How to Extract .7z.001 files - Microsoft Q&A 3carvideos.7z.001
How to Extract Multiple 7ZIP Files at Once [.7z.001 .7z.002 .7z.003...] Move every numbered part into the same folder
If you’ve encountered a file ending in .7z.001 , you aren't looking at a single corrupt file, but rather the of a multi-part compressed archive. To successfully open it and view the "3 car videos" inside, you must follow a specific process. 1. Gather All Parts Install the Right Software You can use 7-Zip
A popular choice for macOS users to handle split archives.