An M4V file is a video file format developed by Apple. It is closely related to the MP4 format but is commonly associated with content purchased or rented from the iTunes Store. M4V files may include DRM (Digital Rights Management) protection, which restricts the use of the content to authorized devices.

How to open an M4V file:

1. Media Players:

2. iTunes:

Programs that may open M4V files:

1. VLC Media Player:

2. iTunes:

3. Windows Media Player:

Various apps that use files with M4V extension: