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 …

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.

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

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.

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

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.

If you recently bought a new Windows device, you might not be able to find classic Outlook, or the icon appears, but when you try to open it, you might get an error that says, We couldn't verify …

If you saved the .pst file to a CD-ROM you'll get this message. Copy the .pst file to your computer, a USB flash drive, or other location. Then right-click the .pst file, choose Properties, and click …

Time, date, time zone, and daylight-saving time settings can be configured in the Settings app in Windows. To set these settings in Windows, select the desired task from the following list: