New module for X-Cart 5 -
Site Structured Data. This module allows webmasters to easily add Structured Data Markup to the website - Logo, Company Info, Breadcrumbs, Rich Snippets, etc.
It uses JSON-LD which is the newest and simplest markup format. It creates easy to read and understand structured data markup and it doesn't require any changes to the html code of the site.
Few screenshots
For more detailed description head to the module's official page - http://www.cflsystems.com/site-structured-data-for-x-cart-5.html