The SYSessential OST to PST Converter is a great tool for changing OST file into PST format. Additionally, this software program is also capable of converting an OST file into formats such as EML, EMLX, MSG, MBOX, HTML, and PDF. The software will give the users a chance to preview all their emails, folders, and attachment files before converting them, making it possible for the user to have a full understanding of what they are doing. This software will give the user an opportunity to convert only particular folders, particular dates, or specific file formats. This will make it easier to skip the whole OST file. comfortable in working with all Windows versions (7, 8, 10, 11)