is a website sponsored by search engines to standardize an XML format for sitemaps.
They created the Sitemap XML Format. This is a single XML file containing information about all the links on your website. It can be submitted to search engines, so that the search engines can find all the pages on your website.
Site Map Pro
Site Map Pro can generate this XML file by using the Google Sitemap XML
This menu option generates version 0.90 standards compliant XML which can be submitted to any compatible search engine.
Compatible Search Engines
The 3 major search engines Google
(Microsoft) and Yahoo
all support the XML sitemap format.