Extension: mov
What is it? Apple Quicktime movie file
Where’s it from? The mov standard for multimedia files was created by Apple Computer. It is widely used by developers of multimedia content and applications. It is available on Mac OS and Windows platforms.
How do I use it? Use Apple Quicktime for Mac or Windows, or the free IRFranview utility for Windows.
Can I safely delete or move it? Yes.
Can it be dangerous? Yes. Mov files found on P2P networks such as Limewire are often infected with malware. Use antivirus software.
— David Hakala