I just recently started developing apps with XML config files. However, I wanted to start using XSD schema's to validate the XML.

Where to start?? well, google of course. I found one of the best sites for simple "How To's" in all types of tutorials.

The site is www.w3schools.com and it has several tutorials that are easy to follow and comprehensive. Here is the link to the XSD How To

http://www.w3schools.com/schema/schema_howto.asp