Download and install HJSplit: http://hjsplit.en.softonic.com/download
Make sure that:
– All parts (.001,.002…) are in the SAME folder.
– All parts (.001,.002…) are having the SAME name.
If it’s ok, then start!
1. Open HJSplit
2. Click Join
3. Click Input File, choose the file ends with .001, open it
4. Click Start
After that, it’ll start to join the parts and you’ll end up having the video.