>Hi,
>
>I need to create an XML file by typing the content from a book that I follow. The XML is somewhat involved. I am using a Notepad to type in the content (if you have better suggestions that don't involve learning complicated tools, please let me know). But I also want to be sure that once I am done entering the content I didn't make a typo somewhere. How can I validate this XML file?
>
>TIA.

Writing a code snippet that will validate the XML file should be pretty easy.

I think this code would throw an exception if the XML was not valid.
XmlTextReader reader = new XmlTextReader ("myxmlfile.xml");
http://support.microsoft.com/kb/307548

Also XML editors have built in validation tools along with highlighting and intellisense.

Einar