SYSessential OST to PST converter is designed to offer quick and safe conversion of OST files of Outlook to PST format. The software assists in recovering as well as migrating mailbox data without disturbing the original mailbox data or folder structure. The software also allows converting OST files into different formats like EML, MSG, NSF, PDF, MBOX, and EMLX. It can be used for batch conversion of several OST files. It preserves folder hierarchy and ensures data consistency during the process of migration. It can migrate emails, contacts, notes, calendar, and journals accurately. The software offers a preview facility to allow users to preview the mailbox data before migration. It facilitates customised migration through exporting only selective folders as well as mailbox items. Its simple graphical interface enables users to easily work with the utility without facing any technical trouble. The software is compatible with all Windows operating systems and all Outlook versions.