1. Download Video Converter Pro and Install it
2. Choose the Files You Want to Join
3. Specify the Output File Format
4. Merge All Videos into One File
At the bottom of the window, check the Merge all videos into one file box, then click Convert to start processing. It can take from one to several minutes, depending on the file size and the number of files you merge.
Now that you're finished, and that's all about using Program4Pc Video Converter to merge video files.