Knowledgebase

From the Outlook ribbon, select File
Click Options
Click Advanced
Under the Export section, click Export
In the "Import and Export Wizard", click Export to a file
Click Next
Under "Create a file of type", choose Comma Separated Values (Windows)
Click Next.
Under "Select a folder to export from", choose the contact folder you want to export. Note: If you have your email addresses in an Outlook Personal Address Book, first convert your email Personal Address Book to a Contacts folder. See your Outlook online help for more information.
Click Next
Under "Save exported file as", click Browse and select where you want to save the file
In the "File Name box", type a name for the file
Click OK
In the "Export to a File" dialogue box, click Next
Click Finish

Outlook 2013 & Outlook 2016
On your Outlook menu, click File Click Open & Export > Import / Export Select "Export...