Remove html from output XML Export

When I create an xml export, I'm running into a few "theme" issues

1. How do I remove the

from text fields? I have all the wrapper elements to "none". It converts to special characters on export.
2. How do I include nested elements. I tried a markup custom field since my values are fixed, but it converts to special characters on export. Is there a way to turn off the conversion of special characters?
3. Is there a way to change to to emulate a rss feed? I can add a header and footer to complete the schema.