In order to share the information in a space with external systems as RSS feeds, you need to enable RSS Feed on that space.
Go to details page of the News space and click on the enable RSS syndication icon, as shown in the following screenshot:
A new window pops up enabling you to select the RSS template to be applied to the space as an RSS feed. RSS templates are custom scripts that determine the content to be shown as feeds. Alfresco ships with built-in standard RSS template called
RSS_2.0_recent_docs.ftl, which renders a valid RSS2.0 XML document, showing the documents in the current space created or modified in the last 7 days. ...