.ADR File Extension
What is an ADR file?
The .ADR file extension is associated with Opera web browser bookmarks. It stores bookmark data, including saved URLs, folder structures, and other metadata related to bookmarks within the Opera browser.
More Information.
The .ADR file format has been used historically by Opera to store bookmarks. It serves the purpose of allowing users to save and organize web links for easy access across different sessions.
Origin Of This File.
Opera, a popular web browser known for its early innovation and features, introduced the .ADR file format to store and manage bookmarks efficiently.
File Structure Technical Specification.
- Format: Binary or XML-based (depends on Opera version).
- Contents: Contains URLs, bookmark names, folder structures, and possibly metadata such as tags or descriptions.
- Compatibility: Older versions might use a binary format, while newer versions could switch to XML for better interoperability.
How to Convert the File?
Windows
- Using Opera Browser:
- Open Opera browser.
- Go to Bookmarks > Manage bookmarks (or press
Ctrl + Shift + B
). - Click on File > Export bookmarks.
- Choose HTML file (.html) as the format.
- Save the exported HTML file to your desired location.
Linux
- Using Opera Browser:
- Open Opera browser.
- Navigate to Bookmarks > Show all bookmarks.
- Click on File > Export bookmarks.
- Select HTML file (.html) as the export format.
- Save the HTML file to your preferred directory.
macOS
- Using Opera Browser:
- Launch Opera browser.
- Access Bookmarks > Show all bookmarks.
- Click on File > Export bookmarks.
- Opt for HTML file (.html) in the export options.
- Save the resulting HTML file to your chosen location.
Android
- Using Opera Browser App:
- Open the Opera browser app on your Android device.
- Tap on the three-dot menu icon to access settings.
- Go to Bookmarks and select Export bookmarks.
- Choose HTML file (.html) as the export format.
- Save the HTML file to your device storage.
iOS
- Using Opera Browser App:
- Launch the Opera browser app on your iOS device.
- Tap on the three-dot menu icon to open settings.
- Navigate to Bookmarks and choose Export bookmarks.
- Select HTML file (.html) as the export format.
- Save the exported HTML file to your iOS device.
Others
For other platforms or scenarios where Opera isn’t directly available, follow these steps:
- Using Opera on Windows, Linux, or macOS (if possible):
- Export bookmarks from Opera to HTML format using the browser’s built-in export feature.
- Using Any Platform:
- If Opera isn’t available, consider accessing a device or system where Opera can be installed.
- Once installed, follow the steps mentioned above for the respective platform (Windows, Linux, macOS, Android, iOS).
Advantages And Disadvantages.
Advantages:
- Efficient storage of bookmarks.
- Allows for easy export/import of bookmarks across devices.
- Integration with Opera’s bookmark management features.
Disadvantages:
- Compatibility might be an issue with non-Opera browsers.
- Limited support for direct editing without using the Opera browser.
How to Open ADR?
Open In Windows
Open with Opera browser.
Open In Linux
Open with Opera browser.
Open In MAC
Open with Opera browser.
Open In Android
Open with Opera browser app.
Open In IOS
Open with Opera browser app.
Open in Others
Use Opera browser where available; otherwise, convert to a more widely supported format like HTML for use in other browsers.