Short answer is that you need a Pervasive/Btrieve engine to open MKD files.
Longer answer is that you'll need the engine but you may also need DDFs unless you are willing to write an application to read the files using the Btrieve API. If you have DDFs (or create them), you can use ODBC and any number of tools to export the data. If you don't have DDFs, you'll need to create them or create an application using Btrieve calls to read the data. EIther way, you'll need to know the record structure.
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Mirtheil Software
Certified Pervasive Developer
Certified Pervasive Technician
Custom Btrieve/VB development
http://www.mirtheil.com
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