The *.mkr file extension is related to the McCullough Knowledge Explorer knowledge representation file format.

There is one other file type using
the MKR file extension!

empty icon.mkr - Train Simulator marker data

Detailed description

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MKR file extension - McCullough Knowledge Explorer knowledge representation

What is mkr file? How to open mkr files?

File type specification:

Various data file type icon Various data file type

The MKR file extension is associated with the McCullough Knowledge Explorer app. The *.mkr file stores knowledge representation.

The McCullough Knowledge Explorer seems to be obsolete product without support from developer or producer.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .mkr file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

Knowledge Explorer website

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