The XML file is for "Google Sitemaps".  

cf. https://www.google.com/webmasters/sitemaps/siteoverview?hl=en
Login: john.kim3@gmail.com
Usual web password

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Unfortunately, the sitemap calls for identifying each of the URLs 
in a site individually, including last modified time, frequency of 
modification, and priority.  

This would require a (probably simple) script from me to generate.