UNR File Extension

Unreal Level Map
- File Type unr
- Popularity
- Application UnrealEd
- Category Game Files
What is a UNR file?
The UNR extension is related to Unreal Level Map and is classified in the Game Files category, which contains 1265 files.
UNR files are supported by Windows. To open a UNR file, you can choose from 3 programs such as UnrealEd, Unreal and Unreal Tournament (1999).
How to open a UNR file?
If you cannot open a UNR file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
UnrealEd, Unreal and Unreal Tournament (1999) stand out as the preferred programs to manage UNR files effectively. To install the current version of UnrealEd, go directly to the official Epic Games website. The universal package for all operating systems is available there.
After successful installation, your operating system should seamlessly handle UNR files via UnrealEd.
Set UnrealEd as the default UNR program
Change Default Program on Mac
- Right click or Control + left click on the desired UNR file;
- Choose "Open in Application" and click "Other";
- Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
- Select "All Programs" from this menu and proceed to search for UnrealEd. Check the box next to "Always open in app" to set it as the default option.
Set default programs for Windows
- Start by right-clicking on your UNR file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the UnrealEd application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening UNR files.
Solve problems with UNR files
UNR files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.
What are the ways to check if my UNR file is damaged?
UNR game files that have become corrupted may display one or more of the following symptoms:
- The file does not respond or shows errors when opening it;
- The file exhibits poor performance during editing operations in UnrealEd;
- The file stops responding or freezes in UnrealEd or other programs;
- Unexplained UNR file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does UnrealEd crash or shut down frequently?
Insufficient updates for Epic Games products can cause UnrealEd to crash. Be sure to regularly install the latest software 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.
Is there any specific software or utility that can help repair a damaged UNR file?
Use a recovery program to open the damaged UNR file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish, allowing automatic repair of damaged game files.
How to edit a UNR file?
To make changes to UNR files, you need specialized software that allows both opening and editing the game files. Online UNR editors offer fewer capabilities than applications optimized for Unreal Level Map.
Best UNR Editor Software in 2026
With the mentioned criteria in mind, we have assembled a selection of UNR editors.
| UNR Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| UnrealEd | Epic Games | Windows | 4.8 out of 5 (44 reviews) |




