The File Extensions Database


.MI File Extension

  • Developer by: Parametric Technology Corporation
  • Category: 3d graphics, CAD-CAM-CAE Files

What is an .MI file?

.MI is CoCreate CAD drawing

The mi file extension is associated with CoCreate, an environment for 3D and 2D CAD design. CAD Computer-aided design is the use of computer technology for the design of objects, real or virtual. 

The mi file contains 3D drawing created in the program.


How to open:

Primarly use CoCreate to open *.mi files.

How to convert:

It should be possible to export CoCreate CAD drawing to some common exchange format like DWG/DXF.

How to solve problems with MI files

  • Associate the MI file extension with the correct application. On :
    Windows: Right click on any MI file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.MI files". Mac: Right click (or Ctrl-click) the MI 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 .MI is CoCreate CAD drawing. Because only the current version supports the latest MI file format. Search, therefore, e.g. on the Parametric Technology Corporation manufacturer website after an available .MI is CoCreate CAD drawing update.
  • To make sure that your MI file is not corrupted or virus-infected, get the file again and scan it with antivirus software.