This is a XML Sitemap which is supposed to be processed by search engines which follow the XML Sitemap standard like Ask.com, Bing, Google and Yahoo.
It was generated using the Blogging-Software WordPress and the Google Sitemap Generator Plugin к iJunkey.
You can find more information about XML sitemaps on sitemaps.org and Google's list of sitemap programs.
This file contains links to sub-sitemaps, follow them to see the actual sitemap content.