Do you mean the .rxdata?
If so, that is a little more complicated. You would need to embed Ruby or IronRuby and have it dump the Marshalled data, setting the classes using an .rb file you have created to emulate RPG::MapInfos. Although embedding IronRuby in C# isn't overly complicated, this is kind of over-complicating a simple problem, and one that won't be too difficult for the user to enter themselves.
It would be far easier to just have your program make the user type it in, and then be able to save the settings. Serialization in C# is really easy, you can find some examples in the CCTS Config solution you got. To make it easier, include some methods to "batch" setup maps to reduce the pain-in-the-ass factor.