A daily updated filename extension database!

URN file extension

The table below provides useful information about the .urn file extension. It answers questions such as:

  • What is the .urn file?
  • What program do I need to open a .urn file?
  • How can the .urn file be opened, edited or printed?
  • How can I convert .urn files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ H3DAPI Uniform Resource Name Data

URN file is a H3DAPI Uniform Resource Name Data. H3DAPI is an open source haptics software development platform that uses the open standards OpenGL and X3D with haptics in one unified scene graph to handle both graphics and haptics.
URN format description not yet available
Category: Data files
Application: H3DAPI
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
URN aliases:
URN related links:
URN related extensions:

Other types of files may also use the .urn file extension.

🚫 The .urn file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

irn, jrn, krn, run, udn, unr, ur, urb, urm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Alpha Five User Definition Data
BlueM Consumers Data
IRedit Database
Unreal Level Map
SAP POS Journal File
Ur Source Code
NBA 99 Game Font Data
Humdrum Toolkit KERN Data
Unreal Engine 2 Runtime Executable File
Runscanner Scan Result

🔴 Can't open a .urn file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .urn file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .urn file extension, write to us!

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