OST TO PST Converter Free - Version 3.0 OST to PST Converter Free Tool can easily convert OST file thereby performing a thorough check of OST file, as it locates all emails along with whole attachment. After this, the software display the recovered data including email messages, folders, posts, appointments, contacts, tasks, meeting requests, distribution lists, task requests, journals and notes etc. Convert OST files that are not connected to Outlook. OST to PST Converter Free Tool can be a elucidation of troubles caused by Exchange Server. In case of your Exchange Server downtime, accidental user account deletion, the server crashes and your data is not accessible, you may want to convert OST to PST file format. All your emails, calendars, contacts, tasks etc. can be opened in Outlook after the OST to PST Converter Free Tool. To prevent Offline Storage .ost file's data loss, it is useful to back up data in the Personal Storage file format. Back up Exchange data using this simple OST to PST Converter Free Tool. OST to PST Converter Free Tool protect all version MS Exchange Server (4.0, 5.0, 5.5, 2000, 2003,