AVI File Extension

AVI file icon
Audio Video Interleave Format
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What is AVI file?

AVI format is the standard video file format. It is a multimedia container file that holds audio and video data. AVI is very popular file format and widely used to store video data, and for multimedia streaming and transmission purposes. It was introduced by Microsoft in 1992.

AVI file structure

AVI file format is based on RIFF format and uses the same data write method, which divides data into strictly defined parts. First part, designated HDRL, is a file header containing information about the video file – size, number of frames, and compression algorithm parameters. Second part, tagged as MOVI, contains actual audio and video data. Third part, designated IDX1, is optional – it contains information regarding location of the fragmented data in the AVI file.

AVI format compression

AVI format offers a compression function , which is optional. However, the compression method is less efficient than those used in MPEG or MOV formats, and the compressed file is sti l l considerably large. The reason is that the compression method is somewhat limited due to use of DivX and XviD encoding. Non-com p ressed f iles are large in size, but they offer better audio and video quality even after multiple read and write procedures. Also, such files do not require additional codecs.

We hope we helped you solve the problem with the AVI file. If you do not know where you can download the application from our list, click on the link (which is the name of the program) - you will find more information there on the location where to download the secure setup version of the required application.

What else may cause problems?

There can be more reasons which determine that you are not able to open the AVI file (apart from the lack of the proper application installed).

First - the AVI file may be incorrectly associated with the application installed to support it. In this case, you need to change this association by yourself. To do this, right-click on the AVI file that you want to edit, click "Open with" and then select the program from the list that you have installed. After this operation, the problems with opening the AVI file should be solved.

Second - the file you want to open can simply be damaged. Then, the best solution is to find a new version of given file, or download it again from the same source as before (maybe for some reason in the previous session the download of the AVI file has not been completed and it cannot be opened properly).

Do you want to help?

If you have additional information about the AVI file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on AVI file.

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