For bulk migration of TGZ files to MSG format, the software we highly recommend is BetaVare TGZ to MSG Exporter. This professional tool has been built specifically for bulk processing of TGZ files without losing your data. The application processes files in bulk efficiently and can also look further to ensure that no data was lost. The software was crafted for Windows 11, 10, 8.1, 8 and 7 and provided accurate results all over the wide variety of operating systems. The software also keeps all email contents, including attachments, structure and both metadata and HTML formatting. The tool has an easy-to-use graphical interface to simplify and increase the process for converting your TGZ files to MSG in bulk and is perfect for any skill level, from beginner to advanced. 

visit here https://www.betavare.com/tgz/msg/