Looking for utility for ost to pst conversion

[griffinn]

A client has a need to convert an OST to a PST. He wants to open .ost backup file. Is there a free utility for this?

 

[spellunker]

A client has a need to convert an OST to a PST. He wants to open .ost backup file. Is there a free utility for this?

Here's a freebie that is supposed to do this, I do not know how good it is though.

OST2 - a free OST to PST converter

Here's the Google search I did: convert ost to pst. there may be something else you could find useful.

 

[pedersen]

Please have a look at this forum topic: https://support.office.com/en-US/ar...-and-ost-6d4197ec-1304-4b81-a17d-66d4eef30b78
.OST to .PST Files conversion solution - Fixya
Hope this information will be helpful for you.

 

[pedersen]

For sake of clarity - there is no such thing as a backup ost file. These files can only be opened in Outlook by the profile/email account that created it. OST's represent the contents of the server the last time Outlook connected to the account. Exception to this are the folders designated as "This computer only" - those folders must be copied or exported to a separate PST file for future access.
Getting back to your original question - your only option is going to find a 3rd party tool that can convert a stand-alone OST file to a PST file. Do a google/boing search for available options. Or if you want you can use Outlook Recovery Toolbox-which I sometimes use. OstToPst convertor | Ost to pst convert tool | How to repair .ost file of Microsoft Exchange?

 

[London45184]

Hi,

There are several methods to convert OST file to PST file.


First, Microsoft does not provide an official tool to do the conversion. However, if you can access the contents of the OST file in your Outlook, then you can perform the conversion manually, as follows:


1. Start Outlook. Make sure you can access all the contents in the OST file to be converted.
2. Create a new PST file.
3. Go to the OST file, select and copy all the contents to be converted with your mouse.
4. Go back to the new PST file, then paste all the contents into the PST file


That will do the conversion.


You can also perform the conversion by export the contents of the OST file to a PST file by following the instructions at:


http://office.microsoft.com/en-001/...-to-an-outlook-data-file-pst-HA102534110.aspx


Second, if you can access the Exchange server containing the account data for the OST file, then you can use Export-Mailbox command to export the data into a PST file, similar to convert your OST file into a PST file. Below is the article about doing that:


http://technet.microsoft.com/en-us/library/bb266964.aspx
http://technet.microsoft.com/en-us/library/cc535123.aspx


Third, if you cannot access the OST file via Outlook, neither can you access the Exchange Server, then you can refer to Outlook MVPs' website discussing about this issue:


Convert an Offline File (.ost) to a Personal File (.pst)


Forth, there are many third-party OST to PST conversion tools you can try, below is a list of them:


https://www.datanumen.com/exchange-recovery/compare.htm


Nearly all these tools provide a free trial so you can try first to see if a tool works before purchase it.


Good luck!