Import contacts in to MS Mall on Win 10

I am trying to import my AOL mail contacts in to MS Mail 10 (or the People app, which I understand is the app that interfaces with MS Mail 10 but I can not figure out how to do this.  This has nothing to do with Outlook at all, so let's not talk about Outlook.  Does anyone know how to import my address book with hundreds of contacts in to  MS Mail 10.    Thx