Zimbra Converter is one of the leading company providing option to convert Zimbra Exported TGZ files to multiple file formats. One can convert Zimbra to PST, Office 365, PDF, EML, EMLX, MSG, DOC and other file formats. Easiest solution to migrate Zimbra TGZ files without making any loss of data and keeping the formatting and structure of it maintained. Download free the major products from here.
http://zimbraconverter.com/