A daily updated filename extension database!

CK4 file extension

The table below provides useful information about the .ck4 file extension. It answers questions such as:

  • What is the .ck4 file?
  • What program do I need to open a .ck4 file?
  • How can the .ck4 file be opened, edited or printed?
  • How can I convert .ck4 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

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

✅ Commander Keen Data File

CK1 file is a Commander Keen Data File. Commander Keen is a series of video games developed by id Software in the early 1990s.
CK1 format description not yet available
Category: Game Data files
Application: Commander Keen
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CK1 aliases:
ck2, ck3, ck4, ck5, ck6
CK1 related links:
CK1 related extensions:

Other types of files may also use the .ck4 file extension.

🚫 The .ck4 file extension is often given incorrectly!

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

c4, c4k, ck, ckt, cl4, cm4, k4, vk4

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Keyence VK Series Data
Clonk Game Key
Edmics Image
Easy CD Creator 4 Project
Clonk 4 Script
CaseMap 4 Data
ChucK Source Code
DataFlex Index
CircuitMaker Document
Ansys Chemkin Thermodynamic Data

🔴 Can't open a .ck4 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .ck4 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .ck4 file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文