.MPV4 File

The mpv4 file extension is associated with the video file format defined by MPEG-4 standard (ISO 14496-1).

The MPEG-4 file format, as defined by the MPEG-4 specification, contains MPEG-4 encoded video and Advanced Audio Coding (AAC)-encoded audio content.

It typically uses the mp4 file extension for its files.

How to open:

Many common video formats can be played back with some universal media player like VLC player. However, some highly specialized and proprietary formats may only be supported in certain players that are usually provided by the original developer.For general information try to look at:Basic info how to open video and movie files

How to convert:

Generally speaking, you will need a multimedia converter if you want to convert one video format to another. You can find hundreds of converters on the internet, but their quality may vary and many may not even support every video format. So always use some of the more popular and reliable software first. For general information try to look at:Basic info how to convert video and movie files