Get the full free demo version of VartikaZimbra TGZConverter tool; it is one of the better migration applications. It easily migrates all the items including all emails, attachments, contacts, calendars, lists, journals, notes, tasks, briefcase and etc. Zimbra Converter tool to change Zimbra files to various file formats such as- PST, MSG, EML, and MBOX. During the conversion process, the software maintains all the folder structure without any problems.