The external tool for converting Outlook PST files to XML is readpst.
Readpst is part of the free and open source libpst software suite (<http://www.five-ten-sg.com/libpst/>), which converts PST files to MBOX format.
Depending on your operating system, the readpst executable may be included with the Xena package. If so, this will be located within a sub-directory in the same directory as the Xena program (xena.jar). Otherwise, the executable must be installed separately.
1. From the Xena menu bar, select Tools - Plugin Preferences - Email:
Result: The Email Preferences window is displayed.
2. Click Browse.
3. Navigate to the location of the readpst executable.
4. Click Open.
5. To save this setting, click OK.