I can’t open OST file of Microsoft

5 pts.
office 2010
How to open OST file of Microsoft Outlook 2010?

Software/Hardware used:
office 2010

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Its look like that your OST outlook file damaged so you can repair them



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  • Amanda lakai
    There is no manual method for importing the OST file to Outlook.

    However, if you have the outlook prolife that created the OST file. Then simply recreate a new ost file. The OST file will be automatically synchronized with the exchange server and data will be downloaded back from the server to the ost.

    For more info check the link:



    If the original MAPI profile that created the ost file has been deleted and you are left with only the ost file.
    Then you will not be able to import and access the ost file directly into outlook. To access its contents, first you need to convert it to PST format then import the converted PST file into outlook.

    2,345 pointsBadges:
  • Subhendu Sen
    You can repair ost/ pst file. Just try here this link: http://office.microsoft.com/en-in/outlook-help/repair-outlook-data-files-pst-and-ost-HA010075831.aspx
    61,930 pointsBadges:
  • carlosdl
    What are you trying to accomplish?  Why and how are you trying to open it?
    80,565 pointsBadges:
  • clark445kent
    There is no manual way or an inbuilt utility provided by Microsoft outlook to open or import OST file in PST format. So you have to go for a third party utility like MS Outlook OST to PST Converter as they help in converting OST file in PST format. If you don’t want to spend money on the full version of the software then use demo version as it helps in converting a particular number of items in Outlook PST file format.
    8,235 pointsBadges:
  • Brijesh

    Try Open File Tool, which is all-in-one software.
    - Open .ost files of Microsoft Outlook + Microsoft Exchange; 
    - Open .pst files of Microsoft Outlook 
    - Convert ost to pst files 
    - Repair .ost files of Microsoft Outlook + Microsoft Exchange; 
    - Repair .pst files of Microsoft Outlook + Microsoft Exchange; 
    First two are available in DEMO version of OST Open File Tool for all. or try some recovery software.
    Check the resource Outlook 2010 Problem 

    Hope this helps.
    14,435 pointsBadges:
  • Alex456
    You can try manual as well as third party solution to open OST file in Microsoft Outlook.
    985 pointsBadges:
  • OliverButler
    If you can't open your Personal Folders file (.pst) or your Offline Folder file (.ost), or you suspect that your .pst or .ost data file is corrupted, you can use the Inbox Repair tool (Scanpst.exe) to diagnose and repair errors in the file. The Inbox Repair tool scans only the .pst or .ost file, not your mailbox on the server running Microsoft Exchange. The tool determines whether the file structure is intact. If it is not intact, the Inbox Repair tool resets your file structure and rebuilds the headers.

    105 pointsBadges:

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