From the "PRO-GEN utilities" menu, select "Export" and then "GEDCOM export". Use the person list to find and select the proband of the pedigree or ancestor of the family tree. Select "Related persons", "ancestors" or "offspring". From this follows a list of people from the pedigree or pedigree. Now press Enter and enter the name of the GEDCOM file to be created. A window appears with general information fields that you do not have to fill in. In the next screen you just click on 'Continue' after which the creation of the GEDCOM file starts.