My company is dropping desktop versions of Microsoft Office in favour of online equivalents. Our sysadmin has migrated mail messages but not contacts. My findings so far:

  • *.pst format: Outlook on the web doesn't seem to support it.

  • Exporting to CSV: exporting the top-level "Contacts" item generates an empty file (with just headers). Exporting each individual item seems to work but I'd need to repeat it several dozen times.

  • Official documentation and YouTube videos assume that contacts must be imported in desktop app and will magically show up on the web. I presume that only happens if you buy the appropriate licence.

  • The commercial application that buys ads in Google searches appears to be some kind of scam.

Is there a way to migrate all contacts at once from Outlook 2013 to Outlook on the web?

1 Answer 1


I eventually reached the conclusion that the only way is to use CSV and painfully go several dozen times through the export/import cycle.

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