>> AU3 file

AU3 file format description

Many people share .au3 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .au3 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .au3 files.

1 filename extension(s) found in our database.

.au3 - AutoIt v3 Script

The AU3 development files are related to AutoIt v3. AU3 file is an AutoIt v3 Script. AutoIt v3 is a freeware BASIC-like scripting language designed for automating the Windows GUI and general scripting. It uses a combination of simulated keystrokes, mouse movement and window/control manipulation in order to automate tasks in a way not possible or reliable with other languages.

AutoIt v3
Development files
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AutoIt v3 Script related extensions:
Autodesk Maya Embedded Language Script
EAGLE User Language Program
AutoLISP Visual LISP Executable
Autodesk AutoCAD VBA Macro
Asterisk Extension Language Source Code
Razor VB Web Page

Naturally, other applications may also use the .au3 file extension. Even harmful programs can create .au3 files. Be especially cautious with .au3 files coming from an unknown source!

Can't open a .au3 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 .au3 file extension is often given incorrectly!

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

au, aue, aur, qu3

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Sun Audio File
Annotated Urban Environments Data
QuoVadis Database

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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