.3DMBAK File

.3dmbak is Rhino 3D model backup file

Key Features: .3DMBAK File Extension

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File extension 3dmbak is used in Rhino 3D, a NURB based 3D CAD, CAM modeling software for Microsoft Windows and Mac.

A .3dmbak file stores backup of 3D model created in the Rhino 3D (.3dm file).

It appears that only Rhino 3D can open and restore .3dmbak backup files.

It is unlikely that you could convert these backups, but once the data have been recovered you can convert that.

Associate the 3DMBAK file extension with the correct application. On :
Windows: Right click on any 3DMBAK file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.3DMBAK files". Mac: Right click (or Ctrl-click) the 3DMBAK 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 .3DMBAK is Rhino 3D model backup file. Because only the current version supports the latest 3DMBAK file format. Search, therefore, e.g. on the Robert McNeel & Associates manufacturer website after an available .3DMBAK is Rhino 3D model backup file update.
To make sure that your 3DMBAK file is not corrupted or virus-infected, get the file again and scan it with antivirus software.