File Extension Library

.3DM File Extension

  • Developer by: Robert McNeel & Associates
  • Category: 3D Image Files
  • Format: Binary

What are .3DM files and how to open them?

Can't open .3DM file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .3DM file.

What is a .3DM file extension?

.3DM file extension is created by Robert McNeel & Associates. .3DM has been classified as 3D Image Files. The format of .3DM file is Binary.

.3DM is Rhino 3D Model

A 3DM file is an open-source 3D model format and native file format for Rhinoceros. It contains a 3D model which includes surface, points, and curve information. 3DM files allow CAD, CAM, CAE, and computer graphics software to accurately save and exchange 3D geometry using both NURBS and polygon mesh representations.

The 3DM open-source library is available at

List of all softwares that can open the Rhino 3D Model
McNeel Rhino
Autodesk Fusion 360
McNeel Rhino OSX
IMSI TurboCAD Deluxe

How to fix problems with .3DM files

  1. You need to update the application that you normally use to open .3DM files. Only the latest version of the software supports the current .3DM file format
  2. You need to check the .3DM file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)