How to Join Files Using HJSplit
1. Download the software “HJSplit”
2. Launch “HJSplit”.
3. In the File click “Join" button, Next click on the "Input file" button.
4. Locate the group of files that all have the same file name, except for the extension at the end of the file. The extensions begin with ".001" and continue ".002," "003" and so on. Make sure you have all the files needed to join. If one is missing, you will not be able to complete the process. The files should all be in the same directory.
5. Click on the "Start" button.
6. View the progress bar as the files are joined. When completed, HJSplit displays a "Joining Completed" button. Click "OK."
7. It's done. The joined file is in the same directory as the parts of the file.