SYSessential OST to PST converter is one of those innovative tools that can retrieve orphaned and inaccessible files with ease. This software helps in converting OST files into PST files; however, this is not all, as this software can also be used in converting OST files into various other formats. This software maintains the folder structure and email properties in addition to keeping track of the metadata. This software converts Outlook email files with their contents, such as contacts, notes, pictures, calendars, tasks, journals, etc., without compromising the quality of the files converted. To convert Outlook email files using this software, the user has to install it, select the OST file that needs to be converted, preview the files before doing so, select the destination for conversion, and finally proceed to convert the files. This software has a preview function where users can check out the data for an overview and changes made, leading to better results for users. It is fully standalone, works with all Windows versions, and requires no download of Outlook for external support.