How to Change WordPress RSS

1. Log into your WordPress site.
2. Click 'Settings,' then click 'Reading.'

3. Change the value of 'syndication feeds show the most recent' to the number of posts you wish to include in your feed.
4. Choose 'Full text' or 'Summary' to adjust the amount of information that appears in the feed. Enter a formatting type in the 'Encoding for pages and feeds' setting if you do not like the default setting.
5. Click 'Save Changes.'