Outlook is capable of storing and organizing personal information, including calendars, tasks and address books. The default address book in Outlook is automatically created from your contacts list.

the personal address book is saved as a *.PAB file, do a search, copy the file to the new computer and IMPORT the addresses into the new mail account ...

How to Transfer a PC Address Book to a Mac. The Address Book on your Windows-based computer stores the contact information for your business and personal contacts all in one location.