Question: how to import excel into outlook 2016 contact group?
Answer: At the top of your Outlook 2013 or 2016 ribbon, choose File. ...  Choose Open & Export > Import/Export. ...  Choose Import from another program or file, and then choose Next. Choose Comma Separated Values, and then choose Next. In the Import a File box, browse to your contacts file, and then double-click to select it.