There are 3 other file types using
the CDK file extension!

empty icon.cdk - Calamus SL document

empty icon.cdk - CD Katalog file

empty icon.cdk - CADKEY document

Detailed description

Software that open cdk file

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CDK file extension - OS/2 saved SKF format file

What is cdk file? How to open cdk files?

File type specification:

Disk image (ISO) binary file type icon Disk image (ISO) binary file type

The CDK file suffix is associated with the IBM OS/2 operating system. File contains floppy disk image. Mime: file/binary

The default software associated to open cdk file:

OS/2 icon

IBM logoOS/2  Other operating systems or devices software

Company or developer:

OS/2 is operating system developed by IBM for personal computers. OS/2 is no longer marketed by IBM and support for OS/2 was discontinued in 2006. OS/2 is very similar like Windows in many ways, but also has similarities with Unix. The last version of OS/2 is named OS/2 Warp.

Help how to open:

Your best option to accessing disk image formats is to use some of the virtualization programs that typically support most of the common disk image formats which can be either mounted as virtual drives or burned on physical media.

For general information try to look at:
Basic info how to open disk images

How to convert:

Most disk image formats can be nowadays converted to standard ISO format, however conversion between various formats is typically possible. Your best option is typically some disk image management tool with broad format support, for example ISOBuster.

For general information try to look at:
Basic info how to convert disk images

Related links:

OS/2 Shareware Web & BBS

List of recommended software applications associated to the .cdk file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open cdk file, edit cdk file, convert cdk file, view cdk file, play cdk file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with cdk file - OS/2 saved SKF format file

Click on the software link for more information about OS/2. OS/2 uses cdk file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Other operating systems or devices:

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