Embeded XML editor?

Hi guys!

I have a rss feeds section on my site, which uses .xml files to get the content that is needed.

The problem is.. I must manually edit the xml file and upload it to the server, each time i update it.

I also have a working admin section where i can log in and make changes to other parts of my site.

Is there any way, or any script that i can use embed a basic editor in my admin section (in a separate page) and have it open up the .xml page form within the server, edit it, and then save it, using just my web browser.

Details:
Browser: Firefox
XML version: 1.0
RSS version: 2.0


Any and all help is appreciated!

Thank you!