ALX File Extension

ActiveX Layout Control Format
- File Type alx
- Developer Microsoft
- Popularity
- Application BlackBerry Desktop Software
- Category System Files, Settings Files
- Format XML
What is a ALX file?
Files with the ALX extension are associated with ActiveX Layout Control Format and are categorized as System Files and Settings Files, making up 1441 files.
The ActiveX Layout Control Format (ALX), created by Microsoft, is one of file format they developed, and they also built 242 programs to support them.
ALX file support extends to various operating systems, including Windows, Mac OS and Linux. When working with ALX files, you can rely on 3 programs, including BlackBerry Desktop Software, Eclipse and BlackBerry Java Development Environment.
File Signature
HEX code: 3C 6C 6F 61 64 65 72 20 76 65 72 73 69 6F 6E 3D 22. ASCII code: loader version=.
Programs that support ALX files
How to open a ALX file?
If you can’t open a ALX file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
When it comes to opening and working with ALX files, BlackBerry Desktop Software, Eclipse and BlackBerry Java Development Environment are the top choices for users. To install the updated version of BlackBerry Desktop Software, simply go to the BlackBerry site and download the installer compatible with all major platforms.
Once the process is complete, BlackBerry Desktop Software should take over as the default application for ALX files.
Set BlackBerry Desktop Software as the default ALX program
Changing Default Programs in Windows
- Right-click on your ALX file, then choose the "Open with" option and select "Choose another application" from the available options;
- In the pop-up window, select the BlackBerry Desktop Software application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening ALX files.
Change Default Program on Mac
- Right click or Control + left click on the desired ALX file;
- Select "Open in application" and click "Other";
- At the bottom of the window, you will find the "Enable" menu. Default, will be set to "Recommended Programs";
- Choose "All Programs" in this menu and search for BlackBerry Desktop Software. Check the box next to "Always open in app" to make it the default program.
How to edit a ALX file?
To edit ALX files, it is essential to install software that supports not only viewing but also editing the system files. Online ALX editors provide limited functionality compared to full-featured software for ActiveX Layout Control Format.
List of Top ALX editors 2026
Based on the criteria above, here is a selection of ALX editors you can use.
| ALX Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Eclipse | Eclipse | Windows, Mac OS, Linux | 4.7 out of 5 (38 reviews) |
| BlackBerry Java Development Environment | BlackBerry | Windows | 4.3 out of 5 (42 reviews) |
Solve problems with ALX files
Rest assured, any issues with ALX files can typically be addressed with simple software adjustments. See the tips below for help.
Why does BlackBerry Desktop Software stop responding or crash intermittently?
BlackBerry Desktop Software crashes can be caused by outdated software. Keep your BlackBerry products up to date by installing the latest updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
What are the best practices for repairing a ALX file that has gone bad?
Use a data recovery program to open the damaged ALX file and from the menu choose "Repair" function to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged system files.
What are the warning signs that my ALX file may be corrupted?
Common indications of damaged ALX system files are:
- Error messages appear during the course of working with the file;
- Editing the archive in BlackBerry Java Development Environment results in slow or unresponsive behavior;
- Opening the file results in an error or a failed attempt;
- Unexpected expansion of the total size of the ALX file;
- Opening the file in BlackBerry Desktop Software or other programs causes them to hang or crash;






