I am new with wordpress. I want to customize my rss feeds. But I couldn't find the rss file.
I want to change this rss: http://goo.gl/KEiS0U
I tried to change wp-includes/feed-rss2.php and wp-includes/feed-rss.php
But they don't change. It is not working. Where can I change this rss feed?
Don't edit CORE WordPress files like the one you are editing now. WordPress provides hooks to do whatever you want ( well almost ) without touching the core.
See this on how to modify the RSS feed with a template
This also shows you how to write and use your own template
This is what the Codex says about RSS Feed modifications
If you prefer using a plugin ( In the WP world, in most cases what you want is already done by someone before you )
Check this out : https://wordpress.org/plugins/tags/custom-feed
