SYSessential OST to PST Converter is an effective tool that will help in transferring email files securely, in addition to converting from OST to PST for emails in Outlook. The tool will not only help you convert OST to PST; the tool is also capable of converting emails in other formats, including EML, EMLX, MSG, NSF, and PDF formats. You will find the software very helpful in the recovery of your orphaned OST files as well as mailbox items in the absence of Outlook on your computer. You will find the software ensuring that the folder structure, attachments, and email files are intact while being converted to PST files. In the process, this particular software will be able to convert large numbers of mailbox items before converting them into OST files. Thanks to its impressive functionality, you will find it easy to transfer email files, including inbox, contacts, notes, calendar entries, journal files, etc. You will also be able to preview your email files before converting them into any other format.