Do you have a of where this file came from, or are you trying to recover the video content? ffmpeg Documentation
In professional digital cinema packaging (DCP), a VF (Version File) is a supplemental file that references a "Main" or "Original" version (OV). For example, if you have a movie (OV) and want to add different subtitles or a dubbed audio track, you create a VF that only contains the new audio/subtitles and points to the original video. VF VTS0001 mp4
Depending on the context, "VF" and "VTS0001" often have the following meanings: Do you have a of where this file