You can also use the Views module to create an RSS feed of any content on your site. When you create the View, select the View Type as Views RSS: RSS feed.
1. Go to admin/structure/views/add.
2. Give the view a name (required), add any (basic) additional configuration options you might want, and then under Create a page, select Include an RSS feed.
3. Give the RSS feed a path (you'll see the box).
4. Continue & edit, configure the view like normal, then save.