The plugin allows you to import a datafeed into wordpress and then create a post from each product or row in that datafeed. Yuou create a template for the posts using the template designer in the plugin, and then tell it to create the posts. You can also assign a unique column from the datafeed to each post whcih means that when that datafeed is updated you can re-upload it to the plugin and update all your existing posts or create new posts for new products in that datafeed.