If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .avsi

On this page, we're going to take a closer look at the .avsi file extension, which is related to AviSynth Script. We'll explain what exactly a .avsi fileformat is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .avsi files into different formats, we'll give you some tips on how to do that too. Let's see the file format associated with this file extension!


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avs file - AviSynth Script

AviSynth Script

The AVS file is an AviSynth Script. AviSynth acts as a non-linear video editor (without a GUI) controlled entirely by scripting. It stands as an intermediary between a digital video source, like an AVI or MPEG, and a VFW receiving program, which is typically a media player, video editing software, or an encoder.
Category: Multimedia files
Application: AviSynth
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.mp2p Mpeg 2 Stream
.dvx DivX Video
.xas Sony Playstation Video
.dinfo DivX Temporary Video Info

The .avsi file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .avsi extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .avsi file extension wrong?

In our database, we came across the following similar extensions:

.asi Men of War: Assault Squad 2 ASI Data
.avs Stardent AVS X Image
.avci HEIF Image
.vsi RatDVD Internal VSI Data
.avi Microsoft Video for Windows Movie

The .avsi extension is frequently misused

People sometimes confuse the .avsi filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

asi (1), vsi (1), avi (1), avs (1)

Having trouble opening a .avsi file?

If you want to open a .avsi file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .avsi association can trigger this error.

Windows can't open this file:

File: example.avsi

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android