Opening AU3 Files

The AU3 file type is primarily associated with AutoIt Script Editor.

AU3File Extension AU3
File extension: AU3
File type:  script

What is an AU3 file?

AU3 files mostly belong to AutoIt Script Editor by AutoIt Consulting. An AU3 file is a script written in AutoIt version 3 scripting language for Windows. AutoIt scripting language has a BASIC like syntax. A script (AU3 file) written in this language includes a sequence of commands including library/module imports, variable declarations, I/O operations, loops etc. that collectively automate a specific task. For example, an AU3 script that opens File Explorer will contain the following line of code:

Run("explorer.exe")

AutoIt Script Editor is the default code editor for creating and editing an AU3 script.

How can I open an AU3 file?

You need a suitable software like AutoIt Script Editor to open an AU3 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your AU3 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a AU3 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online AU3 Text Viewer

Choose your .au3 file to view

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How to extract texts from AU3 files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from AU3 file or capture a screenshot, you can use our free Online AU3 File Viewer:
  1. Just click the "Choose your .au3 file to view" button on this page.
  2. After your file is opened in browser,
  3. click "Save as..." in the menu.
  4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
  5. Your file will be converted and downloaded.

Programs that open and convert AU3 files:

  1. AutoIt Script Editor by AutoIt Consulting
    See the previous paragraphs to learn more about the main application. AU3 files are often referred to as AutoIt Script Editor developers because this type of file is primarily created or used by this software.
  2. Sublime (script) by Sublime
    Sublime is a lightweight code editor with support for most programming languages. It can create and edit an AU3 file containing a script written in AutoIt scripting language. This file format is classified as Developer. Related links: AutoIt

AU3 file format:

The file format determines how the data is stored in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. File extension, signature and file format must match; otherwise errors will occur when the file is opened. Knowledge is power - this also applies when dealing with unknown or faulty files. Our examination of the AU3 files comes to the following conclusion:

The AU3 file extension is used very often and covers different formats for different programs. The file formats most commonly found in AU3 files are:

The remaining 43% of all AU3 files are different files with different signatures. These files sometimes refer to gamer, macro, reset, trial, base, hitchhikers, generator, update, code, farm or hack. You can get all the details of your AU3 file by dragging it onto this page or by clicking the button "Choose your .au3 file to view" above.

Technical Data for AU3 File Extension

File classification:
Developer
Related files:
Related links:
Mime type:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AutoIt3Script
EXEFile: notepad.exe %1

ProgramID: AutoIt3Script
EXEFile: %ProgramFiles%\AutoIt3\AutoIt3.exe %*

ProgramID: AutoIt3Script
EXEFile: %ProgramFiles%\AutoIt3\SciTE\SciTE.exe


an au3 script is a special file format by AutoIt Consulting and should only be edited and saved with the appropriate software.

How to solve problems with AU3 files

  • Associate the AU3 file extension with the correct application.
  • Update your software that should actually open scripts. Because only the current version supports the latest AU3 file format. Search, therefore, e.g. on the AutoIt Consulting manufacturer website after an available AutoIt Script Editor update.
  • To make sure that your AU3 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .AU3 file online - secure, fast, and no downloads needed.
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