The File Extensions Database

.3MF File Extension

  • Developer by: 3MF Consortium
  • Category: 3D Image Files
  • Format: XML

What is an .3MF file?

.3MF is 3D Manufacturing File

A 3MF file is an archive saved in the 3D Manufacturing Format (3MF), which is used by various 3D design programs to save 3D models. It contains a 3D model, material, and property information compressed with Zip compression. 3MF files may also store a print ticket, thumbnail image, and one or more digital signatures.

3MF file open in Microsoft 3D Builder

The 3MF format is designed by the 3MF Consortium, which was created in 2015, to provide a more streamlined 3D printing process. It is intended to be the sole format used from design to fabrication, replacing .STL, .OBJ, .AMF, .VRML, and other 3D formats in order to reduce interoperability issues.

A 3MF file always contains a 3D model, which includes a description of one or more 3D objects. The 3D model may also include texture information for each 3D object and a print ticket that contains recommended print options. The 3MF file may also store a .JPG or .PNG thumbnail image, digital signatures, core properties, and other metadata.

NOTE: The 3MF consortium was created by Microsoft in 2015 and consisted of Autodesk, HP, Microsoft, GE Global Research, Fit AG, Shapeways, SLM Solutions Group, Ultimaker, Stratasys, Siemens PLM Software, and Dassault Systemes.

Programs that open 3D Manufacturing File
Microsoft 3D Builder
Microsoft Paint 3D
Dassault Systemes SolidWorks
Dassault Systemes CATIA
McNeel Rhino
PTC Creo
Ultimaker Cura
Dassault Systemes SolidWorks
Ultimaker Cura
Dassault Systemes CATIA
PTC Creo
Ultimaker Cura

How to solve problems with 3MF files

  • Associate the 3MF file extension with the correct application. On :
    Windows: Right click on any 3MF file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.3MF files". Mac: Right click (or Ctrl-click) the 3MF file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .3MF is 3D Manufacturing File. Because only the current version supports the latest 3MF file format. Search, therefore, e.g. on the 3MF Consortium manufacturer website after an available .3MF is 3D Manufacturing File update.
  • To make sure that your 3MF file is not corrupted or virus-infected, get the file again and scan it with antivirus software.