I am trying to import data originally set up in an Excel spreadsheet and everytime I do it I get the following message: "Error creating primary key on field "ID" (index or primary key cannot contain a null value)" I don't understand. Why can't I create a primary key on one of the fields? How am I going to link the different tables if it won't let me set up a primary key. It gives me the same message no matter what field I try and use. HELP!!!