The File Extensions Database


  • Developer by: Cyberduck
  • Category: Settings Files
  • Format: Text

What is an .CYBERDUCKLICENSE file?

.CYBERDUCKLICENSE is Cyberduck Donation Key

Cyberduck license file generated by Cyberduck, an open source FTP program; created when a user registers the software by making a donation to the Cyberduck development team.

Once a Cyberduck license file has been generated, the Cyberduck application will indicate it has been registered. The program will also stop prompting the user for donations each time it is opened.

In Mac OS X, the Cyberduck license file is saved in the following directory:

~/Library/Application Support/Cyberduck

Programs that open Cyberduck Donation Key

How to solve problems with CYBERDUCKLICENSE files

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