What does the file extension .mov signify?

The .mov file extension signifies a common multimedia format used for video, which is primarily associated with Apple's QuickTime. This format can contain various types of media, including video, audio, and text, which enables it to support multiple codecs and playback methods. The .mov format is widely used for digital video storage and is compatible with many video editing programs, making it a popular choice for video production and distribution. Its capability to hold high-quality video and audio along with interactive features makes it a versatile option in the multimedia landscape.