MailConverterTools OST Viewer Tool is a reliable and easy-to-use software that allows users to open and read OST files without needing Microsoft Outlook or Exchange Server. Whether your OST file is healthy, orphaned, or corrupted, this tool makes it easy to access all your email data without any hassle. 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. Apart from this, the software converts OST files to MBOX, PST, PDF, MSG, EML, and EMLX. The software supports the preview of not just emails but also all mailbox items like calendars, contacts, notes, tasks, and journals. It even shows complete metadata and attachments, making it useful for deep email inspection or data recovery purposes. Even if the file is severely corrupted, the tool offers multiple scan modes—Standard, Advanced, and Deep—to ensure that you can still retrieve and view your important data.