Both the component and the full joomla install contain example feeds and menu configuration. Have a look before removing them.

Configuring feeds

See this article

Importing the product data

After configuring a feed the data can be imported using the 'cron' menu or by clicking on the 'last update' date in the feed list.

Creating datafeeds menu's

Setting up automatic  feed updates

See automatic import for details about cron's.