AD file format description

Many people often share .ad 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 .ad files. To address this issue, we have created this page to offer assistance and guidance on handling .ad files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .ad files.

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

5 filename extension(s) found in our database.

.ad - After Dark Screensaver

The AD file is an After Dark Screensaver. After Dark is a series of computer screensaver software introduced by Berkeley Systems for the Apple Macintosh, and later for Microsoft Windows.

Category:Data files
Magic:- / -

After Dark Screensaver related extensions:

  • esd Algor SuperDraw 3 Data
  • brres BRRES Resource Package
  • smx STATISTICA Matrix File
  • all OS/2 Warp Program List
  • mc4d Maxon Cinema 4D Object
  • ulz USBlyzer Captured Data

.ad - DSM Application Diagram

The AD development files are related to Visual Studio. The AD file is a DSM Application Diagram. The Distributed System Designers (DSM) are a core component of Visual Studio Team Edition for Software Architects and the Visual Studio Team System.

Application:Visual Studio
Category:Development files
Magic:- / -

DSM Application Diagram related extensions:

  • clb Code Librarian Database
  • rdbg RemedyBG Debugger Data
  • pas SIMATIC WinCC Script
  • vssscc Visual Studio Solution Source Control
  • xgm Exient XGS Model Data
  • xqm Oxygen XML Editor XQuery Module

.ad - AppleDouble Encoded Data

The AD archive files are related to Mac OS. The AD file is an AppleDouble Encoded Data. AppleDouble is a file format developed by Apple Inc. for storing file metadata and resource forks in a Unix-like file system.

Application:Mac OS
Category:Archive files
Magic:- / -

AppleDouble Encoded Data related extensions:

  • dtea Diagnosis Template Archive
  • flatpak Linux Flatpak Application Bundle
  • ants Tansee Message Transfer Backup
  • pkg Mac OS X Installer Package
  • avasttheme Avast Antivirus Theme Data
  • sda Pretty Good Privacy Self-Decrypting Archive

.ad - AxSys Script

The AD development files are related to AxSys. The AD file is an AxSys Script. AxSys is an obsolete, script based control software. The AxSys seems to be no longer supported.

Category:Development files
Magic:- / -

AxSys Script related extensions:

  • pawn Pawn Source Code
  • xsf Milinta APL APL+Win Data
  • mli OCaml Interface Source
  • workbook Xamarin Workbook Data
  • paf2 Code Composer Studio Dependency Scan Data
  • projectproperties Alpha Five Web Project Properties Data

.ad - Anno Designer Project

The AD project files are related to Anno Designer. The AD file is an Anno Designer Project. Anno Designer is a building layout designer for Ubisoft's Anno-series.

Application:Anno Designer
Category:Project files
Magic:- / -

Anno Designer Project related extensions:

  • bmo SIMATIC WinCC Script
  • pqp Pano2QTVR Project
  • eqm Electric Quilt Mini Project
  • gsz GeoStudio Compressed Project
  • sedprj Slideshow Studio Elements Project
  • mmpp Material Maker Paint Project

Be careful.

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

Can't open a .ad 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 .ad file

To set the .ad 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 .ad file association. Many applications can open .ad files without requiring any specific file association to be set.

The .ad 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:

ac, ae, af, ar, as, av, aw, ax, da, qd, wd, xd

Is it possible that the filename extension is misspelled?

There is a possibility that the .ad 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 .ad:

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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