A daily updated filename extension database!

CMK file extension

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

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

Table of Contents

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

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

✅ CardShop Plus Document

CMK file is a CardShop Plus Document. CardShop Plus is a greeting card maker for Windows.
CMK format description not yet available
Category: Document files
Application: CardShop Plus
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CMK aliases:
CMK related links:
CMK related extensions:

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

🚫 The .cmk file extension is often given incorrectly!

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

cmu, vmk, chk, mk, fmk, cnk, cmo, cml, cm, ckm, cjk, smk, mck, dmk, cmm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

CMU Window Manager Bitmap
Saved File Fragment
Pool of Radiance Game Data
CryptoMailer Encrypted File
Creation Kit Macro
Visual Module of Knowledge Data
Epidata Defined Checks
TRS-80 Floppy Disk Image
Chemical Markup Language File
Corel R.A.V.E Project

🔴 Can't open a .cmk 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 .cmk 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 .cmk file extension, write to us!

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