3DM file: How can I open a .3DM file?
The table below provides useful information about the .3dm file extension. It answers questions such as:
- What is the .3dm file?
- What program do I need to open a .3dm file?
- How can the .3dm file be opened, edited or printed?
- How can I convert .3dm files to another format?
We hope you find this page helpful and a valuable resource.
✅ OpenNURBS 3D Model

The 3DM file is an OpenNURBS 3D Model. The openNURBS Initiative provides CAD, CAM, CAE, and computer graphics software developers the tools to accurately transfer 3-D geometry between applications.
✅ Rhino 3D Model Data

The 3DM file is a Rhino 3D Model Data. Rhino 3D is a CAD software used primarily in architectural trades, industrial design and jewellery design.
✅ QuickDraw 3D Metafile

The 3DMF file is a QuickDraw 3D Metafile. QuickDraw 3D enables your computer to display three-dimensional graphics using applications designed to take advantage of QuickDraw 3D. It also provides a common file format, called QuickDraw 3D Metafile (or 3DMF for short), for exchanging 3D documents.
⚠ Be careful with .3dm files.
It's important to know that the .3dm file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .3dm files. Be cautious when dealing with .3dm files from unknown sources.
🚫 The .3dm file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .3dm 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:
Select an app to open this .3dm file
It means that the operating system does not have a default app associated with the .3dm file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .3dm file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .3dm file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .3dm file extension, write to us.