Excel add-in for XML schema XSD mapping

See more:

XML

MS-Excel

XSD

schema

Hi,
I am new to the world of Office Add-Ins.
Here is what I am trying to do:
I would like to create an add-in that will:
1. Read column names of an open excel document (xls, xml, csv, etc).
2. Read the fields of a provided XSD XML schema file.
3. Map the fields to columns if they match exactly, otherwise show a message saying that certain columns were not found.

I believe the "Workbook.XmlMaps" Property is where I should dig, however I wonder if somebody already did something similar or can give me hints/pointers in the right direction.

Any help is appretiated.