Hi Mark,
Unfortunately, NI does not have a product or utility that will do this conversion, but try either Mentor Graphics or Vector as they may have such a utility for this. You could create a LabVIEW application to do this using the LIN Specifications, but if you're looking for a pre-made utility, trying one of these guys will most likely be your best bet.
Regards,
Austin S.
National Instruments
Academic Field Engineer