XSLT Mapping Help Needed

Hi,

I have a XSD file with multiple references in my external definition. I am trying to build a schema validation functionality for a xml based on the multiple XSD's.

Is it possible to do a schema validation using xslt mapping?

I am using Altova mapforce to generate XSLT mapping but somehow it is not working. It gives me an error "XML Not well Formed".

Please help!!