: It is the native format for iOS devices , Apple TV, and QuickTime.
: On a Mac or PC, you can open unencrypted M4V files using Apple Music , QuickTime Player , or third-party software like VLC Media Player. Sins-1.m4v
: If the file is not copy-protected , you can often simply rename the extension from .m4v to .mp4 to improve compatibility with non-Apple players. How to Open and Use the File : It is the native format for iOS