How do you fix Outlook data file Cannot be opened?

Repair an Outlook data file (.pst) file

Exit Outlook and browse to one of the following file locations:

Outlook 2019: C:\Program Files (x86)\Microsoft Office\root\Office16

Outlook 2016: C:\Program Files (x86)\Microsoft Office\root\Office16

Outlook 2013: C:\Program Files (x86)\Microsoft Office\Office15

Outlook 2010: C:\Program Files (x86)\Microsoft Office\Office14

Outlook 2007: C:\Program Files (x86)\Microsoft Office\Office12

Open SCANPST.EXE.

Select Browse to select the Outlook Data File (.pst) you want to scan. If you need help locating your Outlook Data File, see Locating the Outlook Data Files.

Note: By default, a new log file is created during the scan. You can choose Options and opt not to have a log created, or you can have the results appended to an existing log file.

Choose Start to begin the scan.

If the scan finds errors, choose Repair to start the process to fix them.

When the repair is complete, start Outlook with the profile associated with the Outlook Data File you just repaired.

Hope this fixes it.

More information: Exchange 2010 to 2016 Migration | Email Migration Service | OneDrive Migration

Regards, Bruce

It's an error 0x8004010F, a very common error that mostly appears when you send or receive an email in Outlook or Outlook Express.

There can be many reasons for this type of error such as OST file is corrupt, Incorrect configuration or corrupt Outlook profile, No internet or unreliable network connection, Sending/receiving emails via Shared Mailbox, Firewall settings, etc.

This error can easily be solved by the manual method as well as the professional method.

You can repair PST files using the manual method, but it can be time taking and does not guarantee 100% success.

If you choose the professional tool for it, I would advise you the one which I also prefer to repair my PST file damaged due to this type of errors. Stellar Repair for Outlook, with great features and Microsoft MVPs, suggested.