The message you are seeing is just a warning that browsers tend to give you when you look at an XML document rather than the usual HTML document. The XML document should be shown below the warning, but in your case it looks like your XML document is empty.
It would be helpful if you showed us your WordPad XML document.
Edit:
It would appear that WordPad is a rich text editor and so it is adding it's own formatting info to your document. You do not want that.
Use a plain text editor instead eg. Windows Notepad.