CDK file format description

Many people share .cdk files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .cdk file can be edited, converted or printed with. On this page, we try to provide assistance for handling .cdk files.

2 filename extension(s) found in our database.

.cdk - CADKEY Document

The CDK document files are related to CADKEY. The CDK file is a CADKEY Document. CADKEY is a 2D/3D Mechanical CAD software application released for various DOS, UNIX, and Microsoft Windows operating systems.

Application:

CADKEY

Category:

Document files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

CADKEY Document related extensions:

.cadl: CADKEY CAD Advanced Design Language File
.cde: CADKEY Dynamic Extension
.cdw: CADKEY Organized Dialog Data
.ckd: CADKEY Design Document
.ckt: CADKEY Template Document
.prt: CADKEY Part Document

.cdk - Calamus Document

The CDK document files are related to Calamus. The CDK file is a Calamus Document. Calamus is a desktop publishing application, built for Atari computer. Calamus is still supported by its German owner company, invers Software, and also runs under a built-in and transparent Atari emulator on Windows, or on other platforms such as Mac OS 9 and Mac OS X, using any available TOS emulator.

Application:

Calamus

Category:

Document files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Calamus Document related extensions:

.cfn: Calamus Font Data
.crg: Calamus Raster Graphics Data
.cvd: Calamus Vector Drawing
.cvg: Calamus Vector Graphic

Naturally, other applications may also use the .cdk file extension. Even harmful programs can create .cdk files. Be especially cautious with .cdk files coming from an unknown source!

Can't open a .cdk file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:

example.cdk

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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .cdk file extension is often given incorrectly!

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

cck, cd, cdj, cdl, cdm, cdo, cdu, cfk, ck, ckd, csk, cwk, cxk, dck, dk

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.cdl: CADKEY CAD Advanced Design Language File
.cdm: Sybase PowerDesigner Conceptual Data Model
.ckd: Kubotek KeyCreator Design Container
.vdk: Advance Design Project Backup
.cdl: Common Data Form Language File
.cdl: Maxon Cinema 4D Plugin

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

https://datatypes.net/open-cdk-files

If you have useful information about the .cdk file format, then write to us!