Based on the email account type, Outlook may create an Offline Storage Table (OST) file or Personal Storage Table (PST) file to store a synchronized copy of mailbox items, such as emails, contacts, attachments, etc. In addition, it allows to change OST file into PST file format as well as convert OST to Zimbra, EML, MBOX, MSG, HTML, EMLX, HTML, ICS, and vCard files. Microsoft Outlook stores mailbox data in an Outlook data file. This application ensures 100% to open offline OST file in few mouse clicks. In addition, recover OST file and provides a preview of all OST File mailbox folders & sub-folders with complete folder hierarchy. OST file always synchronized with the Exchange mail server and store email messages in the OST file and once synchronization stopped then no further any email sync from the mail server and the OST file becomes inaccessible for the user.ĮSoftTools OST to PST Converter tool the best solution to make this difficult job of OST file Conversion much relaible. The freeware converter tool vigorously and smartly searches for OST files. Also, you can save the Exchange OST file into an existing or new PST file with the help of this tool. It is a very challenging task to move OST file on a different or new computer and access the OST mailbox which is configured with an older computer or email client. The freeware Microsoft OST to PST Converter tool quickly restores or exports OST files and helps to access the orphaned OST file data. This is an advanced version of OST file conversion technology, which allows direct export of OST to PST supporting Microsoft Outlook with multiple formats such as PST, MSG, EML, HTML, etc. Are you going to move on a new email client or you need to change your computer and need to open the OST file on a new computer? Beneficial Features of OST Converter - OST Exporter Tool.