CPK File - opening and understanding

Did your computer fail to open a CPK file? We explain what they are used for and recommend software that we know can open or otherwise handle your .CPK files.

What is a CPK file?

The CPK file extension is a file format that is generally found in Microsoft Driver Test Manager log files. The .cpk file is a storage container file that stores testing report and result logs. The bCPK files are useful when it comes to logging information about a hardware device.

Driver Test Manager allows users to test the computer drivers to obtain a "'Designed for Windows' logo" for the driver. Having the mentioned logo on the driver means that the driver is consistent with Windows and certain privileges is given to the driver in case of problems and malfunctions.

The .cpk file extension is also used as a file format for submitting reports to Microsoft. This is necessary so that a device can be verified, manage and may be certified for Windows system. CPK files are also immensely helpful for debugging tests that may have failed already. DTM log viewer is designed to support .cpk files contents' viewing.

How to open CPK files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension CPK for different purposes.

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

Suggest another file format using extension CPK

While we know of one file format using the .CPK file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .CPK file.

Various viewers for this file format

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

Free File ViewerFree File ViewerUser submitted
Final Media PlayerFinal Media PlayerUser submitted
CopernicCopernicUser submitted
3nity Media Player3nity Media PlayerUser submitted
SAS StudioSAS StudioUser submitted
Copernic ProCopernic ProUser submitted
We have not verified any software that we know for certain will work with CPK-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with CPK-files. If you know one, please use the 'Suggest a program' link below and tell us about it!