Ubuntu – Open Pst in thunderbird

So here's what I found worked for me:

• Start up Outlook so that you can use it's DLL access to the data
• Start up Thunderbird and use the File|Import wizard to import mail from Outlook. This creates a bunch of mbox formated files inside a directory structure that matches the Outlook folder structure from which they came.
• Exit Outlook and Thunderbird.
• Copy the new mail files and directories from the Thunderbird profile Mail directory into the Evolution profile Mail directory. In my case, this meant copying to a whole new machine. I put them under the local mail directory.
• Start up Evolution. If all went well, Evo should notice the files and directories and show them as mail folders in the "On This Computer" folder.

Thanks to these websites for hints:
http://www.debuntu.org/how-to-import-thunderbird-emails-to-evolution
http://www.linuxquestions.org/linux/answers/Applications_GUI_Multimedia/Howto_migrate_from_Thunderbird_to_Evolution

You could try: ImportExportTools extension to re-import it in another account, or to export it as mbox/eml/text/html/csv