Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .duck

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .duck file?
  • Which program can create the .duck file?
  • Where can you find a description of the .duck format?
  • What can convert .duck files to a different format?
  • Which MIME-type is associated with the .duck extension?
Cyberduck Bookmark .duck file icon

Cyberduck Bookmark

DUCK file is a Cyberduck Bookmark. Cyberduck is a free and open source (GPL) software package that can be used to connect to FTP, SFTP, WebDAV, S3, or any OpenStack Swift-based object storage such as SoftLayer object storage.
Detailed description not available
Category: Data files
Application: Cyberduck
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Cyberduck License Data
Cyberduck Connection Profile Data

Other types of files may also use the .duck file extension. If you have helpful information about .duck extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Resolume Deck
Action Replay DS Max Save
SiteSucker Website Data

The .duck filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

dck (1), suck (1), duc (1), duk (1)

Can't open a .duck file?

If you want to open a .duck file on your computer, you just need to have the appropriate program installed. If the .duck association isn't set correctly, you may receive the following error message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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