SYSessential OST to PST Converter enables smooth conversion of OST files to PST. It helps export OST data in different formats such as EML, EMLX, MBOX, MSG, NSF, PDF, and Office 365. It converts the data while keeping all the email properties and folders hierarchy as it is, while exporting. It supports the conversion of emails, contacts, tasks, calendars, notes, and journals while retaining the exact structure of files and folders. This utility provides automatic previews of the uploaded OST files, allowing users to view their data before export. This utility provides selective features of conversion to enable users to select specific folders/files for conversion. The application provides an easy-to-use interface for both technical and non-technical users. Users can load single/multiple OST files for the conversion process and perform it easily in a few steps. The application is small in size, fast, and reliable for working with large OST files with no interruptions. It is compatible with various Windows editions and does not require the installation of Outlook for better results.