AR file format description

Many people often share .ar files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .ar files. To address this issue, we have created this page to offer assistance and guidance on handling .ar files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .ar files.

Our aim is to simplify the process and promote seamless use of the .ar file format.

4 filename extension(s) found in our database.

.ar - Midtown Madness 2 Game Data

The AR game data files are related to Midtown Madness 2. The AR file is a Midtown Madness 2 Game Data. Midtown Madness is a racing game developed for Windows by Angel Studios and published by Microsoft.

Application:Midtown Madness 2
Category:Game Data files
Magic:- / -

Midtown Madness 2 Game Data related extensions:

  • erf Bioware Encapsulated Resource File
  • dn3 Duke Nukem 3 Game Data
  • cam Oddworld: Abes Oddysee Background Data
  • hal Mortyr Game Archive
  • md3 Quake 3 Arena 3D Model Data
  • ags Street Fighter IV Font Data

.ar - Unix Static Library

The AR development files are related to GNU Binutils. The AR file is a Unix Static Library. A shared library is a library of functions or classes (for C/C++ programmers) that are compiled, linked, and stored separately from the clients (applications) that use them. The UNIX equivalent of a DLL file in Windows is a Shared Library (SO) file.

Application:GNU Binutils
Category:Development files
Magic:- / -

Unix Static Library related extensions:

  • i64 Interactive Disassembler Data
  • xul XML User Interface Language File
  • asmx ASP.NET Web Service
  • wdr WinDev Request Data
  • axf ARM RealView Compiler Object
  • ts0 tio32 Script

.ar - Java JRE 1.3 Library

The AR development files are related to Java Runtime Environment. The AR file is a Java JRE 1.3 Library. Java is a general-purpose programming language that is class-based, object-oriented, and designed to have as few implementation dependencies as possible.

Application:Java Runtime Environment
Category:Development files
Magic:- / -

Java JRE 1.3 Library related extensions:

  • aas Windows Application Assignment Script
  • prm Xilinx ISE PROMGen Memory Map Data
  • dcurl Curl Detached Applet
  • odd TEI Source Code
  • adt IBM AIX Application Development Toolkit Data
  • c++ C++ Source Code

.ar - Microtest Q Archive

The AR archive files are related to Microtest Q. The AR file is a Microtest Q Archive. Microtest Q is an assessment software developed by NCS. The Microtest Q seems to be no longer supported.

Application:Microtest Q
Category:Archive files
Magic:- / -

Microtest Q Archive related extensions:

  • bsc BINSCII Archive
  • paq8jd PAQ8JD Compressed Archive
  • zvf Intergraph Smart Review Compressed Project Archive
  • bm_ Compressed Microsoft BMP Image
  • lxv Lexar Secure II Encrypted Archive
  • qqa Quanquest Archive Data

Be careful.

It is important to understand that the .ar file extension is not limited to a particular set of applications. Other programs besides the intended ones can also use the .ar extension to create files. This includes potentially harmful programs or malware that may generate .ar files for various purposes. Be especially cautious with .ar files coming from untrusted or unknown sources.

Can't open a .ar 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 an extension, you receive the following message:

Select an app to open this .ar file

To set the .ar file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. Under the Default apps section, you will find various categories such as Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate, such as Photos for image files or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the desired app is not listed, click on More apps to see additional options or click on Look for an app in the Microsoft Store to search for apps in the Store.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set .ar file association. Many applications can open .ar files without requiring any specific file association to be set.

The .ar file extension is often given incorrectly

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. Our goal in providing this list is to help users find the right information more easily and enhance their overall search experience on our website.

These misspellings were the most common in the past year:

ad, ae, af, ag, at, qr, ra, wr, xr

Is it possible that the filename extension is misspelled?

There is a possibility that the .ar filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .ar:

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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