These days it is a necessity to import an OST into Outlook PST files from Microsoft® Exchange to Outlook mail client .pst files. Microsoft offers no such utility or any such feature that can import OST files into PST files and allow Outlook users to use data in .pst file format of Outlook. In case, you have OST data with items like emails, contacts, calendars, journals, to do list, drafts etc and need to be imported to PST, you are required to copy entire data in PST file. Problematic case is when OST files are orphaned and need to be imported to PST files, the take help of some outside utility.

OST Files: OST files are local copy of emails when Outlook is configured to use MAPI account. OST files are exact copy of mailboxes present in MS Exchange Server. In various cases, Outlook unable to use OST files, thus to import OST file data, into usable form, preferably convert OST in PST file format of Outlook.

OST files turn orphaned thus become no longer in use directly.

• Encrypted OST Data: MS Exchange Server deals with Offline Storage file or OST file by Server authentication, that user has to pass to use data in OST files. Sometimes, administrator, encrypts OST files, to save access from undesirable users, to save data from accessed from unwanted users. Until this password is intact, it is not possible to use OST file.


• Profile Deletion: In case your original profile is deleted or modified to such an extent that you are unable to use OST data, then serious issue might raise in organization, so it is better to import an OST into Outlook PST, to use OST data in PST file format that can be used normally.


• Mailbox Deletion: Suppose an Exchange administrator deleted mailboxes by mistake or some of the data from mailboxes, resultantly, end users of these mailboxes, you find OST files in absolutely not in a state to work with. This means, OST file is orphaned.

Import an OST into Outlook PST: In the cases and situations mentioned above, the only solution is to use OST data in PST file format of MS Outlook. Once you transfer entire OST data into PST, you can use OST data again.

Tool for Import Process: Tool designed with unique functionalities tool import OST data in PST is OST Recovery software. QDRT and FHCR are unique contributions from company software developers, for apt and multiple conversions, as software is capable to import OST in EML, MSG, and of course in PST.