Those people who don't have any idea to how to migrate the data from Zimbra to Outlook email client then first you need to export the TGZ file form the Zimbra email client and after that you need to convert that file into PST format because Outlook only supports PST file and for convert the data from TGZ to PST you can use the data Vartika Zimbra Converter application as it is safe tool to perform this conversion.

Know more info- https://www.vartikasoftware.com/fr/zimbra-to-outlook-migrator.html#