Migrate Contacts from People App as a CSV file to Outlook Open Outlook app, click File and select Add Account option.

Then, browse to the .csv file you would like to import. Here, under Options, choose whether to replace duplicates (existing contacts), create duplicate contacts, or not import duplicates.

You can import more than 3000 contacts simultaneously though. If you are trying to import over 3000 contacts, try to divide them into several CSV files before importing.

Here’s how it works. How to import passwords in iCloud Keychain You can import your existing database of usernames and passwords if you have it ready in a CSV file.