Open CNK File

CNK files have following possible uses:

Microsoft Dynamics

CNK is a file extension commonly associated with Microsoft Dynamics GP Chunk files. Files with the CNK extension are classified like other files.

Microsoft Dynamics GP, or Great Plains, is an ERP management system built on the affordable and highly-scalable platform of Microsoft technologies.

Pool of Radiance

In this case, the CNK files are used as the Pool of Radiance game data file. Pool of Radiance is a role-playing video game developed and published by Strategic Simulations.

To open and operate on a CNK file you must have one of the following programs installed

Microsoft Dynamics.
Pool of Radiance. (Not Available)