Conversion of vdat files to mp4 file format

If you are sure that your particular .vdata file has been secured via Vaulty app is actually a MP4 video, you should be able to simply rename vdata to mp4, because the program did not alter or encode your video, just change the file extension. If this doesn't work and you cannot playback the file, the file is likely not video at all.

Open VDAT file    Open MP4 file