ADR File

What are ADR files and how to open them

Are you having problems opening an ADR file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ADR files.

What is an ADR file?

ADR files have multiple uses, and Opera Bookmarks is one of them. Read more about the other uses further down the page.

Opera Bookmarks

These ADR files contain a collection of website addresses created by Opera web browser.

You can import and export your bookmark collection through a tool known as Bookmark-Manager. You can create folders to organize your bookmarks neatly.

Bookmark usually consists of websites that you found interesting or want to save for future use.

How to open ADR files

We have identified one ADR opener that is compatible with this specific type of ADR file.

Programs that open Opera Bookmarks files

Last updated: February 24, 2023

All known file formats using extension .ADR

While Opera Bookmarks is a popular type of ADR-file, we know of 3 different uses of the .ADR file extension. Different software may use files with the same extension for different types of data.

After Dark Random Screensaver Module

These ADR files are also called After Dark random screen saver module files. The .adr file format was created by Berkeley Systems in 1989 for their suite of After Dark screen saver software programs, which were designed for Apple Macintosh computers. Berkeley Systems also developed in 1991 versions of their After Dark screen saver programs for Windows PCs.

These .adr files contain digital videos and code that can allow the digital video content to be automatically played when a computer is idle for a specified time. Some versions of these After Dark screen saver tools are also equipped with password-locking functions.

While we have not verified the apps ourselves yet, our users have suggested ten different ADR openers which you will find listed below.

Smart Address Address Book

We know that one ADR format is Smart Address Address Book. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of ADR files. Remember, different programs may use ADR files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ADR file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.