TrustVare OST to TGZ Converter Software for converting OST files to TGZ format without data loss. It is a safe and secure way to convert all OST mailbox data to TGZ format without errors. It is user-friendly software, so all savvy and non-savvy users can easily use this software. It supports all MS Outlook and Zimbra versions. It works with all Windows OS versions like 11, 10, 8, Vista, XP, etc. Users can also try the demo versions for free and explore the software's features easily.