Reading a .GPB file in C#

I have a .GPB file, I need to extract the common GPS data from it but I don't find a clear structure that specify the contents of that file.

as a sample record from file

00000260 02 11 A9 61 E7 96 C4 95 B6 86 CA 01 9A 09 DC 01

how can i go through this file to get my data, I searched alot and found that it called "Dell Axim Navigation System (.gpb) file format".

Regards,

m.sa开发者_Python百科i

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Looks like SharpMap probably supports what you need