Video files are digital files that store moving images and sound. They can be played on various devices, such as computers, smartphones, and televisions. Common video file formats include MP4, AVI, and MOV, each with its own characteristics and uses. These files are created by capturing video footage using cameras or by generating animations. Video files can be edited, compressed, and shared easily over the internet, making them popular for entertainment, education, and communication. Streaming services like YouTube and Netflix rely on video files to deliver content to viewers worldwide.