Importing .ost file into Outlook

I currently have outlooking running with several email accounts.
I also have a .ost file and I would like to know how to import it into outlook.
Cheryl LanderAsked:
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you may have to convert it to pst data file, so open that old profile up and export the ost into pst file, else you will need to convert with a 3rd party program, someone on here suggests,, so  you can give that a whirl,

Shweta GoelCommented:

Outlook cannot import the OST file directly. To import the OST file in Outlook, You can either configure email client to connect to your server and create a new OST or convert OST file into PST file format.

Ost files are just a local cache of your exchange account. Just delete the ost file and connect to exchange, and if you have cached mode enabled, the ost will be created again. There is no need to convert it to pst. Normally also you don't need cached mode anyway, and the ost file, it just uses up local disk space and network bandwidth. It only makes a little bit of sense if your using a laptop that you are always carrying along with you and which doesn't always have an internet connection, and therefore can't connect to your exchange server. If you normally have internet connection on your laptop, you don't need cached mode there either.

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rindi , makes sense but sometimes cache exchange mode is good to save bandwidth on the network, and if you need a local copies of email on your computer,
Cache mode wouldn't normally save bandwidth, on the contrary, it increases it as the data always has to be downloaded to the PC, and local copies aren't needed on a LAN, what for? If the LAN is unreliable or the server shuts down, then in my opinion you need to fix those infrastructure issues, rather than masking the symptoms via cache-mode.

It really only makes sense for notebooks that aren't always connected.
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