In 2009 the National Archives of Australia released their newest version of their Xena digital preservation software. As stated on their website, “Xena aids in the long term preservation of digital records. Xena is an acronym meaning Xml Electronic Normalising for Archives.” It detects the file formats of digital objects and converts digital objects into open formats for preservation. It has been used in the preservation of a range of electronic formats, such as websites and email.
General site: http://xena.sourceforge.net/index.php
Tool for converting email Outlook PST files to XML: http://xena.sourceforge.net/help.php?page=setemail.html