UDL File Extension
Microsoft Universal Data Link Format
- File Type udl
- Developer Microsoft
- Popularity
- Application Sublime Text
- Category Settings Files
- Format Text
What is a UDL file?
Microsoft Universal Data Link Format, identified by the UDL extension, is a Settings Files type and includes 1190 files.
With the creation of the Microsoft Universal Data Link Format (UDL), Microsoft introduced file format along with 242 programs built for their use.
UDL files are supported by Windows, Mac OS and Linux. You can open a UDL file using one of 5 programs, for example Sublime Text, Atom and PSPad.
Programs that support UDL files
How to open a UDL file?
The most common reason why a UDL file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
The most popular programs for working with UDL files are Sublime Text, Atom and PSPad. To get the latest version of Sublime Text, open the Sublime HQ Pty website where a universal installer for all operating systems is available.
Once setup is done, your operating system should assign Sublime Text as the default app for UDL files.
Make Sublime Text the default UDL viewer
Changing the default program in Windows
- Start by right-clicking on your UDL file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- Inside the popup window, scroll through the list of applications and specifically choose Sublime Text as the application to associate with your UDL file;
- Check the "Always use this app" checkbox and click "OK".
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired UDL file to access a dropdown menu of actions;
- Select "Open in application" and click "Other";
- Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
- In this menu, choose "All Programs" and navigate to Sublime Text. Check the box next to "Always open in app" to make it the default program.
How to edit a UDL file?
To edit UDL files, you need to install specialized software that allows you not only to open but also to modify settings files. Online UDL editors usually provide fewer features than software created specifically for Microsoft Universal Data Link Format.
List of Top UDL editors 2026
Following these criteria, we have put together a list of recommended UDL editors.
| UDL Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| PSPad | Jan Fiala | Windows | 4.7 out of 5 (41 review) |
| Notepad++ | Notepad++ Team | Windows | 4.6 out of 5 (37 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.6 out of 5 (39 reviews) |
| Atom | - | Windows, Mac OS, Linux | 4.1 out of 5 (36 reviews) |
Finding answers to UDL file problems
If you encounter issues with UDL files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.
What are the signs that my UDL file is damaged?
Corrupted UDL settings files may have one or more of the following symptoms:
- Poor performance when editing a file in Atom;
- Opening or processing the file in Sublime Text or other programs causes instability or crashes in the program;
- The file shows errors when trying to open it or does not open completely;
- Unexpected expansion of the total size of the UDL file;
- Working with the file triggers the display of error messages;
Why does Sublime Text quit or crash unexpectedly?
Sublime Text crashes can be attributed to outdated software. Make sure you have installed the latest updates for Sublime HQ Pty products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What methods can be used to repair a damaged UDL file?
Use a recovery program to open the damaged UDL file and navigate to the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged settings files.