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U3D file extension

The table below provides useful information about the .u3d file extension. It answers questions such as:

  • What is the .u3d file?
  • What program do I need to open a .u3d file?
  • How can the .u3d file be opened, edited or printed?
  • How can I convert .u3d files to another format?

Table of Contents

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

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

✅ Universal 3D File

U3D file is an Universal 3D File. Universal 3D (U3D) is a compressed file format standard for 3D computer graphics data.
Category: Document files
Application: Blender
Mime-type: model/u3d
Magic number: -
Magic string: -
Sample: -
U3D aliases:
U3D related links:
U3D related extensions:
Autodesk AutoCAD Drawing

Autodesk AutoCAD Plot Drawing

IronCAD Scene

ArchiCAD 3D Model

TurboCAD Drawing

Autodesk QuickCAD Document

VDA-FS CAD Document

AutoCAD Device-Independent Binary Plotter File

ArchiCAD Library Container File

QuickDraw 3D Metafile

Other types of files may also use the .u3d file extension.

🚫 The .u3d file extension is often given incorrectly!

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

3d, h3d, i3d, j3d, k3d, ud, urd, y3d

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Houdini 3D Texture
CAD-3D Model
OmniPage User Dictionary
Cadwork 3D Drawing
Ultra Recall Database
HyperView 3D Model
Yu-Gi-Oh! Online 3 Deck Data
Atari Jaguar 3D Object
K-3D Document

🔴 Can't open a .u3d 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 .u3d 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 .u3d file extension, write to us!

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