AVI (Audio Video Interleave) is a digital video file format developed by Microsoft for use on Windows-based computers. The format is designed to store both audio and video data in a single file, making it a popular choice for digital video playback and editing. AVI files use a variety of video codecs, including DivX, XviD, and MJPEG, as well as a variety of audio codecs, such as MP3, AAC, and AC3. This allows for a high degree of flexibility in terms of the quality and size of the video file, as well as the compatibility with different media players and software applications. In addition to its flexibility, AVI also supports a range of video and audio settings, such as frame rate, bit rate, and resolution. This makes it an ideal format for video editing and post-production, as it allows for a high degree of customization and control over the final output. AVI files can be played back on a variety of media players, including Windows Media Player, VLC, and QuickTime, and can also be converted to other more widely supported video formats like MP4 or MOV using compatible media conversion software. Overall, AVI is a versatile and widely used video file format that provides a high degree of compatibility and flexibility for digital video playback and editing.