You can import an Outlook for Windows Data File (.pst) or an Outlook for Mac Data File (.olm). pst files and importing items, see Help for your version of Outlook for Windows. For more information about how to create. However, you can create a new Outlook Data File (.pst) in Microsoft Outlook for Windows 2003 or later, and then import items from the older file into the new file. pst file, there is no automated procedure to convert that file to the newer file format. If you have the older version of ANSI-formatted. This file format can't be imported into Outlook for Mac. pst files, also known as Outlook 97-2002 Personal Folders Files, were the standard personal folder format for saving data in Outlook for Windows in versions 97-2002.

pst files, which are the standard format for Personal Folders files for Outlook (for Windows) 2003 and later versions. Note: Outlook for Mac can only import Unicode-based.