How to Make a New MS Outlook Archive File. The Microsoft Outlook program, which is a part of the Microsoft Office software suite, stores email data in archive files with .pst extensions.

Create an Outlook archive In Outlook 2007, click File > Archive, select the folder you want to archive, and choose a date in the drop-down menu next to "Archive items older than." ...

However, if you need to create a new Outlook profile or edit an existing one to change email account information or data file storage folder location, doing so in Outlook is not so straightforward.