>> AS3 file

AS3 file format description

Many people share .as3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .as3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .as3 files.

1 filename extension(s) found in our database.

.as3 - ActionScript 3.0 Source Code

The AS3 development files are related to Adobe Flash Professional. The AS3 file is an ActionScript 3.0 Source Code. ActionScript is an object-oriented programming language originally developed by Macromedia.

Adobe Flash Professional
Development files
- / -
ActionScript 3.0 Source Code related extensions:
Create ML Model
Node.js Binary Addon
Visual Studio License Text
Dyalog APL SALT Data
3D Gamestudio Terrain Data
Psion OPL Batch File

Naturally, other applications may also use the .as3 file extension. Even harmful programs can create .as3 files. Be especially cautious with .as3 files coming from an unknown source!

Can't open a .as3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .as3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

a3s, ac3, as, ase, asr, asw, ax3, az3, s3, sa3, ws3, xs3, zs3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Adobe Photoshop Swatch Exchange File
WinDS PRO Data
Aseprite Sprite Data
Flash Server-side ActionScript
Amazon Kindle Format 8 Ebook Metadata
Asura Engine Audio Streaming Archive

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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