Hi,
According to my research, there is no direct option in Outlook to realize this.
As a workaround, we can export contacts to a csv file and then edit it in Excel. After editing, you can import it back to Outlook.
Please refer to the details in these articles.
Export contacts from Outlook
Import contacts to Outlook
If you have more concerns on this feature, it is encouraged to visit the Outlook user voice forum:
https://outlook.uservoice.com/ to vote for a similar idea or post your own.
Thank you for your understanding and support.
Regards,
Perry
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