You might have stored Outlook items in an Outlook Data File (.pst) that you created in classic Outlook. If you want to open or close a .pst file, you now can do that in a few simple steps from …

Describes how to investigate items in an Outlook Data File (.pst) and troubleshoot search issues.

Import all of your Outlook email, contacts, or calendar events that you saved to a .pst so you can view them in Outlook.

Note: Importing a mailbox or calendar using a .pst file is currently not supported in new Outlook at this time. To import from a .pst to a mailbox, you need to use the desktop version of Outlook …

If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.

If your online mailbox is nearly full, you can export some items to an Outlook Data File (.pst). You can also use these files to create archives, project files, or backups from any Outlook account.

To transfer messages and other items from a Windows-based computer to a Mac, Outlook for Mac can import Outlook Data Files (.pst) that were created in Outlook for Windows.

Import the .pst file in order to transfer messages from a Windows-based computer to Outlook for Mac. Export your Outlook for Windows email messages, contacts, calendar items, tasks, and …

A password can be set for an Outlook Data File (.pst) to help prevent unintentional intrusion by other people who share your computer. When a password is used, a password prompt …

While you can't set a password for your entire Outlook program, you can set a password for an Outlook Data File (.pst). This password is required whenever you open the Outlook Data File …