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3MF file extension

The table below provides useful information about the .3mf file extension. It answers questions such as:

  • What is the .3mf file?
  • What program do I need to open a .3mf file?
  • How can the .3mf file be opened, edited or printed?
  • How can I convert .3mf 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

✅ 3D Manufacturing Format Document

3MF file is a 3D Manufacturing Format Document. The 3D Manufacturing Format is an OPC-based format that describes the content and appearance of a 3D model, plus ancillary package features and print instructions, collectively called a 3MF document.
Category: Document files
Application: 3D Printing SDK
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
3MF aliases:
3MF related links:
3MF related extensions:

Other types of files may also use the .3mf file extension.

🚫 The .3mf file extension is often given incorrectly!

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

emf, mf, rmf, wmf

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EES Macro Data
Java Manifest File
Metafont Font
Adobe Acrobat Rights Management File
Windows Metafile
RealMedia File

🔴 Can't open a .3mf 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 .3mf 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 .3mf file extension, write to us!

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