CDK File Type

- The quick facts

What are CDK files and how to open them

Are you having problems opening a CDK file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CDK file?

A .CDK file is a Calamus Document file. Through our analysis of CDK files, we know that one use of the format is Calamus Document. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open CDK files

Important: Different programs may use files with the CDK file extension for different purposes, so unless you are sure which format your CDK file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 6 different CDK openers which you will find listed below.

Last updated: March 28, 2013

Suggest another file format using extension CDK

While we know of one file format using the .CDK file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .CDK file.

Various apps that use files with this extension

These apps are known to open certain types of CDK files. Remember, different programs may use CDK files for different purposes, so you may need to try out a few of them to be able to open your specific file.

ALLPlayerALLPlayerUser submitted
OpenSubtitlesPlayerOpenSubtitlesPlayerUser submitted
YouTube to ALLPlayerYouTube to ALLPlayerUser submitted
ALLSubtitleSearcherALLSubtitleSearcherUser submitted
Calamus SLCalamus SLUser submitted
3DReshaper Application3DReshaper ApplicationUser submitted
We have not verified any software that we know for certain will work with CDK-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with CDK-files. If you know one, please use the 'Suggest a program' link below and tell us about it!