Both apps offer to export contacts and import them without any problem, irrespective of how many contacts you have. Outlook is one of the best email clients and services for Windows 10.

How to export a PST file from Outlook Before you touch Gmail, manually export your PST file to ensure you import up-to-date data. You can only export a PST file with Classic Outlook.

Start file export Open Outlook, then open your Address Book/Contacts folder (click the people icon at the bottom of the left panel). From the Contacts screen, click File > Open & Export > Import ...

See Part One for instructions on how to export Outlook contacts to Excel for data management. Long field names are a pain—they use too much space and take forever to type—so shorten them.

Microsoft Outlook has a tool called the Export and Import Wizard that enables you to export your contacts into a Comma Separated Values, or CSV, file. You can then import this file into the ...