Convert Fannie Mae 1003 .fnm DU 3.2 version file to XML

We need an application/library to convert Fannie Mae 1003 .fnm DU 3.2 version files to XML format. The library would have one simple method, that takes the filepath of .fnm file as input and returns the XML of all the fields as output. Put the errors in the output xml if error/exceptions occur. This must be implemented in .NET using C#. If you haven't worked on this file format before, you might not be suitable for this job, so please do not apply. If you are bidding for this job/project, please send me your experience with this file format.