What is an AVI file?
Definition AVI (Audio Video Interleave) is a Microsoft RIFF-based container for synchronized audio and video streams.
Who made it and why Microsoft introduced AVI in 1992 for Windows multimedia playback and early desktop video workflows.
Why AVI still appears
- Legacy software/camera exports
- Enterprise and training archives
- Recorder/surveillance outputs
Use it in Subclip Import AVI in Subclip Home Player, then convert for modern delivery with AVI to MP4.
History and adoption AVI was heavily used in 1990s/2000s PC media pipelines and remains common in older archives.
TL;DR AVI is a legacy container still found in many historical media collections.
Related converters AVI to MP4, MP4 to AVI.
Related FAQs How do I open an AVI file?, What is an MP4 file?, How do I open an MP4 file?.