How to Open .AVI Video Files
Updated: February 2026
The .AVI file format (Audio Video Interleave) is Microsoft's classic video container format. AVI has been around since 1992 and remains popular despite newer formats, offering good compatibility with older systems and software.
Free Tools to Play AVI Files
- VLC Media Player: Plays virtually any AVI file regardless of codec
- Windows Media Player: Built-in Windows player handles most AVI files
- KMPlayer: Versatile player with excellent AVI codec support
- GOM Player: Free player with built-in codecs for AVI
- PotPlayer: Advanced Windows player supporting all AVI variations
AVI Codec Issues
AVI is a container format that can use various codecs. If AVI won't play, install K-Lite Codec Pack or use VLC which includes all codecs. Common AVI codecs include DivX, Xvid, and MPEG-4.
Converting AVI Files
Use HandBrake or FFmpeg to convert AVI to more modern formats like MP4 or MKV. This often reduces file size while improving compatibility with modern devices.
AVI File Size
AVI files tend to be larger than MP4 or MKV for the same quality because they use older compression methods. Modern formats offer better compression efficiency.
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Frequently Asked Questions about How to Open .AVI Video Files
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