I can’t open OST file of Microsoft

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office 2010
How to open OST file of Microsoft Outlook 2010?

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office 2010

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Yes, you can not open an orphan ost file in outlook. You need to convert it as pst format and then you can import/open in outlook.

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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:

    http://office.microsoft.com/en-us/outlook-help/open-or-import-items-from-an-offline-outlook-data-file-ost-HA102036299.aspx

    http://office.microsoft.com/en-us/outlook-help/move-an-offline-outlook-data-file-ost-HA010378297.aspx?CTT=5&origin=HA102036299

    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.

    For this you will require an efficient ost to pst converter software such as: Stellar OST to PST Converter.

    More Info about the software is available at:
    http://www.stellarinfo.com/exchange-ost-recovery.htm

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  • 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
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  • carlosdl
    What are you trying to accomplish?  Why and how are you trying to open it?
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  • 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.
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