Open and close Outlook Data Files (.pst)

套用到
Microsoft 365 Outlook Outlook 2024 Outlook 2021 Outlook 2019 Outlook 2016 新的 Windows 版 Outlook

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 either new Outlook or classic Outlook.

Tip

For more info about Outlook data files, see Overview of Outlook data files (.pst and .ost).

Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?

Note

If the steps under this New Outlook tab don't work, you may not be using new Outlook for Windows yet. Select Classic Outlook and follow those steps instead.

Add a .pst Outlook data file in new Outlook

  1. Go to Settings > FilesOutlook Data Files.
  2. Select Add file.
    In settings, select General, Outlook Data Files, and then select Add file.
  3. Select a .pst file and then select Open.

Note

Opening .pst files in new Outlook requires classic Outlook to also be installed. Both versions need to be the same architecture: 32-bit (x86) or 64-bit (x64).

Remove (close) a .pst Outlook data file in new Outlook

  1. Go to Settings > FilesOutlook Data Files.
  2. Select Manage on the .pst file you want to close.
  3. Select Close file.

See also