A simple way to move offline OST files to TGZ forms is to use the TrustVare OST to TGZ converter tool. Without changing the original structure during the conversion.  Its simple interfaces let users quickly move their OST files to TGZ forms. It works with ANSI, Unicode, and protected OST files. The fast and smooth conversion tool makes it easy to get the result. Move emails, contacts, documents, events, and other information from OST to TGZ. The batch conversion tool gives you fast, accurate results. Large groups of people, including businesses and individuals, can use it. It can fix OST files in both ANSI and Unicode formats. After the conversion, Outlook info can be accessed on Zimbra. Each time it exports data, it makes log files of it. The application provides a free demo version.