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Download the free OST viewer to easily browse and read the contents of OST files. The application displays the data of OST files without connecting to Microsoft Exchange Server and helps you to open OST file with its associated attachments. You can preview emails, contacts, calendar items, notes, etc. Apart from this, you can also view information such as the date of the message, who sent it, who received it, etc. Besides it regularly shows the contents of corrupted and password protected OST files in addition to OST files, OST file viewer. The OST (offline storage schedule) file and other information created by Microsoft Exchange Server, such as email details, data and tasks related to appointments, and other important information including notes. The user needs a support application such as Outlook and Exchange Server connection to open OST file. The best OST reader tool allows the user to open OST file with all important information without an Outlook or Exchange Server connection. The OST file reader app makes it easy for users to search for a specific OST file between different files with the help of advanced search options. In addition, the user can also apply filtered search that allows the user to search the OST file more accurately. Users can apply filters like To, Bcc, etc. to search for emails of OST files with attachments. Operators such as AND or OR can be used to make the search more accurate. The free OST file viewer works great on all versions of Windows 10, 8, 7 (32-bit or 64-bit), Windows Server 2016, 2012 R2 and 2008.