SYSessential OST to PST converter is a powerful software application developed for the conversion of secure OST files to PST. The software converts OST files to PST file format along with retaining the entire mailbox hierarchy, formatting of emails, attachments, and data integrity during the process of conversion. In addition to PST, the software is capable of conversion to other email formats such as EML, EMLX, MSG, NSF, and PDF. This makes the application quite useful for email backup and management purposes. Using this software, it is possible to migrate mailbox objects including attachments like contacts, calendars, notes, journal, events, folders, and more without compromising on any data. Moreover, the software allows for recovering orphaned OST files from Outlook profiles. The user can also have a preview of the mailbox data using the built-in preview facility. This helps in selective migration according to the user needs. Since it is an independent OST to PST converter, there is no need for Outlook installation.