On the File menu, point to New, and then choose Outlook Data File.Ĭlick Office Outlook Personal Folders File (.pst), and then select OK. This file format cannot be read with Microsoft Outlook 97, 98, 2000, or 2002. pst file in the latest file format, which supports larger files and Unicode character sets. pst file in Outlook 2003/Office Outlook 2007 formatīy default, Outlook creates a. When you run Outlook for the first time, the necessary data files are created automatically. To create archives, project files, or backup files of the Outlook folders and items on your computer, including Exchange accounts, you must create and use additional. pst files are used for POP3, IMAP, and HTTP accounts.

ost files are used only when you have an Exchange account and chose to work offline, or you use Cached Exchange Mode. To allow you to work with your messages without connection to the e-mail server, Outlook offers offline folders, which are saved in an Offline Folder file (.ost) on your computer. With a Microsoft Exchange account, your items are usually delivered to and saved on the e-mail server. Outlook uses a data file to save items on your computer, the Outlook Personal Folders file (.pst). Upgrade to Microsoft 365 to work anywhere from any device and continue to receive support.

Important: Office 2007 is no longer supported.

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