We know all the files with the .avi extension. The name of the extension comes from its initials Audio Video Interleave. AVI is a video format that contains audio and video.
Originally developed by 1992 from Microsoft, it is the standard video format for Windows systems. The file contains audio and video using a variety of encoders, such as DivX and XviD.
AVI uses less compression to store files and takes up more space than many other video formats, such as MPEG and MOV. AVI files can also be created without the use of compression. This makes files uninterrupted, resulting in much larger file sizes. A lossless file will not lose its quality over time, no matter how many times you open it or store it (bad sectors or general disk problems). In addition, it allows playback without encoders.
AVI is a proprietary trademark created by Microsoft, so if you plan to open a file on a non-Windows-based system, you'll need an application.
If you are using Windows, you can double-click the file to open it with Windows Media Player. If for some reason this does not work, you can right-click the file, display the "Open Me" menu, and then click "Windows Media Player" or any other application you are using.
If you're using macOS or Linux, things are not that easy, as these platforms do not have built-in applications with AVI support. You should download an application and of course we recommend VLC Player. It's fast, free, open source and you can use it in Windows, MacOS, Linux, Android and iOS.