nnobakht 0 Light Poster

Hey guys, i have a XML file that i would like to validate using a XSD i have created.
What is the best way to do that?
i dont want to use C# (which is what the rest of the program which outputs the XML is wrriten in)
is there a way when i open the XML for it to be validated automatically and show it if it is ok or error message if it is no?
thank you