CWK File

What are CWK files and how to open them

Are you having problems opening a CWK file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CWK file?

CWK files have multiple uses, and CattleMax Data is one of them. Read more about the others further down the page.

CattleMax Data File

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CWK files

Important: Different programs may use files with the CWK file extension for different purposes, so unless you are sure which format your CWK file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 6 different CWK openers which you will find listed below.

Last updated: December 15, 2021

All known file formats using extension .CWK

While CattleMax Data File is a popular type of CWK-file, we know of 3 different uses of the .CWK file extension. Different software may use files with the same extension for different types of data.

ClarisWorks Document

Files containing the .cwk file extension are most commonly associated with the ClarisWorks or AppleWorks productivity suite used for Apple computers. The CWK files may contain word processing documents, drawings, presentations, or spreadsheets that these software programs have created. Apple bought out Claris in 1998.

More file formats using the CWK extension

Through our research of CWK files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • CG-Prevue Diagram

Various apps that use files with this extension

These apps are known to open certain types of CWK files. Remember, different programs may use CWK files for different purposes, so you may need to try out a few of them to be able to open your specific file.

GraphiCodeGraphiCodeUser submitted
Integrated Software PackageIntegrated Software PackageUser submitted
AppleWorksAppleWorksUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
DAQCreator ApplicationDAQCreator ApplicationUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about CWK file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.