Download a free tool like MailConverterTools OST Viewer to easily open and view OST files. This software is equipped with various advanced features, including the ability to maintain the integrity of the original data while allowing you to explore emails, calendars, contacts, and more. It ensures that folder structures, text formatting, and metadata are preserved when viewing the contents of OST files. With its intuitive and simple interface, the OST Viewer is suitable for both technical and non-technical users.