3DM File Extension

What is 3DM file?

3DM format is an 3D model format available as open standard used by Rhinoceros 3D software. 3DM file stores 3D model data, for example, information about surfaces, curves, and points. 3DM files can also store metadata and formatting attributes.

Universality and various applications of 3DM file format

3DM format is very versatile – it may be used to store and share 3D model data among many graphical programs and CAD, CAE, or CAM software. For that purpose 3DM format utilizes NURBS and polygon representations. This allows users to exchange 3D geometry data among various devices and programs. 3DM files are chiefly used in manufacturing, production, and for interactive animations and games.

Programs which support 3DM file extension

Below you will find an index of software programs that can be used to open 3DM files divided into 2 categories according to system platform supported. 3DM files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Updated: 12/31/2023

How to open file with 3DM extension?

Being unable to open files with 3DM extension can be have various origins. What is important, all common issues related to files with 3DM extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with 3DM files.

Step 1. Install Rhino software

The main and most frequent cause precluding users form opening 3DM files is that no program that can handle 3DM files is installed on user’s system. This issue can be addressed by downloading and installing Rhino or different compatible program, such as Fusion 360, Rhino OSX, Flatland Rover. The full list of programs grouped by operating systems can be found above. The safest method of downloading Rhino installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update Rhino to the latest version

If the problems with opening 3DM files still occur even after installing Rhino, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Rhino is available. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of Rhino installed, it may not support 3DM format. The latest version of Rhino should support all file formats that where compatible with older versions of the software.

Step 3. Associate Rhino 3D Model files with Rhino

If the issue has not been solved in the previous step, you should associate 3DM files with latest version of Rhino you have installed on your device. The method is quite simple and varies little across operating systems.

Selecting the first-choice application in Windows

• Right-click the 3DM file and choose Open with option
• Next, select the Choose another app option and then using More apps open the list of available applications
• Finally select Look for another app on this PC, point to the folder where Rhino is installed, check the Always use this app to open 3DM files box and conform your selection by clicking OK button

Selecting the first-choice application in Mac OS

• By clicking right mouse button on the selected 3DM file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• From the list choose the appropriate program and confirm by clicking Change for all....
• A message window should appear informing that This change will be applied to all files with 3DM extension. By clicking Continue you confirm your selection.

Step 4. Check the 3DM for errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper 3DM file. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the 3DM file for viruses or malware

If the 3DM is indeed infected, it is possible that the malware is blocking it from opening. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the scanner detected that the 3DM file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with 3DM extension is complete and error-free

If the 3DM file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. If the 3DM file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle Rhino

The operating systems may note enough free resources to run the application that support 3DM files. Close all running programs and try opening the 3DM file.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Rhino 3D Model file. It is possible that one of the available system or driver updates may solve the problems with 3DM files affecting older versions of given software.

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