A very easy to use WordPress auto-exporter plugin. Organized into campaigns, create XML files automatically from the Posts types of your choice. But its template field also allows make any file type you want, like CSV, HTML, or just as text files.

This addon allows you to use the eBay products in your WordPress website to publish them automaticly as posts or also as WooCommerce products by relating your eBay Parter Network Campaigns IDs.

Facebook Fetcher Add-on allows to use WPeMatico in a Wordpress website to get all published status in Facebook as Posts in your Wordpress blog.
You can import also the comments in facebook with the names of the commenters to your site in every post.

Add On for WPeMatico plugin.
It converts posts categories to tags while is reading each item contents from feeds.