<div>
You cannot directly open an OST file unless you convert it to a PST file. &nbsp;You can open a PST file using Outlook.<br />
If you export your work mail to a PST and then take it home you will be able to open it happily.<br />

</div>


You cannot directly open an OST file unless you convert it to a PST file.  You can open a PST file using Outlook.
If you export your work mail to a PST and then take it home you will be able to open it happily.


<div>
<div class="content wysiwyg-content">
I have backed up my OST and PST files to an external USB drive. &nbsp;<br />
<br />
My work Outlook is on exchange server.<br />
My home Outlook is not on exchange server.<br />
<br />
How can I open the OST on the home outook (which is not on exchange server). &nbsp;<br />
<br />
Do I need to put everything (including my contacts) into a PST and moving it?
</div>
</div>


I have backed up my OST and PST files to an external USB drive.  

My work Outlook is on exchange server.
My home Outlook is not on exchange server.

How can I open the OST on the home outook (which is not on exchange server).  

Do I need to put everything (including my contacts) into a PST and moving it?

How do I open an OST saved on an USB Harddrive

Mac OS X is the desktop operating system from Apple Inc., found on Macintosh computers. OS X consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD and additional frameworks (written in C, C++ and Objective-C providing user interface and application-level services.

Mac OS X

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.