SYSessential OST to PST Converter is a reliable and powerful software for effortless migration and conversion of Outlook OST files into PST files. The OST to PST converter not only helps in migrating email from the OST file to PST but also supports several other popular file types like EML, EMLX, MSG, NSF, and PDF. The utility is capable of converting even those orphaned OST files and preserves the complete hierarchy of folders and data during the conversion, whether it is small files or large mailboxes. You can easily migrate emails, inbox messages, contacts, calendars, notes, and journals using this software. Inbuilt mailbox preview facility lets you examine the content of your mailbox before beginning the conversion process, thus saving time and effort. The simple steps involved in the conversion process consist of installing the software, selecting the OST file/folder, previewing mailbox content, choosing the desired destination, and beginning the conversion process. Compatible with all Windows editions – Windows XP, Vista, 7, 8, 10, and 11, the software does not require any Outlook installation on your computer.