Archiving (automatic or manual) in Microsoft Outlook helps you to enhance applications’ performance and optimize storage by moving older emails and other items to a separate (archive) PST file. It ...

What is a PST File? The PST File of Microsoft Outlook is a useful application that allows the storage of Outlook emails for both received and sent emails in the hard drive of the computer.

Open up the other pst in outlook as another data store and then drag and drop between that store and your current primary store. You might want to have a look at the ...