The File Extensions Database


.D81 File Extension

  • Developer by: VICE
  • Category: Emulator Files

What is an .D81 file?

.D81 is Commodore VC-1581 diskette emulator image

The d81 file extension is mainly related to a special emulator format that mimics the VC-1581 diskette for Commodore computer.

These diskettes were originally used on C64 and C128 computers.


How to open:

You can open these files using emulators like VICE.

How to convert:

As far as we know, this .d81 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to solve problems with D81 files

  • Associate the D81 file extension with the correct application. On :
    Windows: Right click on any D81 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.D81 files". Mac: Right click (or Ctrl-click) the D81 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 .D81 is Commodore VC-1581 diskette emulator image. Because only the current version supports the latest D81 file format. Search, therefore, e.g. on the VICE manufacturer website after an available .D81 is Commodore VC-1581 diskette emulator image update.
  • To make sure that your D81 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.