CKN file format description

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

2 filename extension(s) found in our database.

.ckn - Disk Doctors CK Support Info File

The CKN data files are related to Disk Doctors. The CKN file is a Disk Doctors CK Support Info File. Disk Doctors is a data recovery suite that helps people who've lost their data.

Disk Doctors
Data files
- / -
Disk Doctors CK Support Info File related extensions:
Bio-Rad CFX Manager Software Data
Cast Soft wysiwyg User Data
xICE Desktop Encrypted Data
ASTi Model Builder ICD Data
Corel AfterShot Pro Plug-in
Autodesk CFD Radiation Data

.ckn - ChessBase General Themes Key Data

The CKN game data files are related to ChessBase. The CKN file is a ChessBase General Themes Key Data. ChessBase is a personal, stand-alone chess database.

Game Data files
- / -
ChessBase General Themes Key Data related extensions:
ChessBase Annotations
ChessBase Search Booster
ChessBase Commentators Index
ChessBase Hash File of Doubles Data
ChessBase Team Index
ChessBase Old Game Database

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

Can't open a .ckn 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:


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.

The .ckn file extension is often given incorrectly!

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

ck, ckb, ckg, ckm, cln, cmn, cn, cnk, con, dkn, skn

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Visual Studio Windows CE Build Settings
Corel WordPerfect Concordance Data
Cricket Audio Bank File
USoft Conceptual Schema Data
Kokogut C Output File
SQL Script Constraints

Operating systems 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.

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