Searching for a solution on how to open a Microsoft Outlook OST? If yes, then you can try this amazing and all-in-one OST Export software that helps you to instantly convert OST data file to multiple file formats with all emails, contacts, calendars, tasks, notes, and etc. along with attachments. It allows you to batch move OST files to PST, PDF, MSG, EML, MBOX, NSF, and etc. file formats without any data loss. It is a very simple GUI, anyone can easily understand how to open a Microsoft Outlook OST files to require file format without any technical experts help. During the process, the tool keeps all the folder structure without any changes and data loss. It supports all the latest and below versions of MS Outlook and Windows OS including Windows 11.