Feed(Aggre)gator takes a list of RSS feeds and creates a single list of RSS items from those feeds to be displayed as a widget. You can select how many items you want to display and whether you want to show the entries chronologically or you want to show the latest entries from each feed listed.
You can also opt to display the date associated with the RSS item as well as the author of the item.
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feedgator

Feed(Aggre)gator merges a group of RSS feeds into a single widgetized list.

ferventsolutions

Feed Excerpts For Divi is a simple plugin for the Divi Theme by Elegant Themes. This plugin provides excerpts for the Blog Post Feed when the Feed is set to show the Summary instead of Full Text.
WordPress filters out shortcodes when it is set to Summary, which leaves the feed content empty for posts using the Divi Builder. This plugin resolves that by generating an excerpt from the first Text Module on the post where the Divi Builder is enabled.
Sample RSS Feed: (http://feeds.feedburner.com/ferventsolutions/feed-excerpts-for-divi)
Contribute on GitHub: https://github.com/ferventsolutions/feed-excerpts-for-divi
NOTE: This plugin is not necessary when using Full Text for the Feed

Feed Excerpts For Divi

Enable excerpts in the Blog Post Feed for posts that use the Divi Builder Text Module

feedgator vs Feed Excerpts For Divi