1. Create a Constituent export
  2. On the Output tab in the left frame, select Addressee/Salutation, Addressee (or Salutation)
  3. In the right frame, highlight the Addressee (or Salutation field) and click Format
  4. On the Additional Addressee/Salutation Format screen, select the Individuals tab
  5. In the 'Use this addressee/salutation if present on the individual', select Primary Addressee (or Primary Salutation), which it should default to.