You have your answer, but if you wonder about a particular one, you can find out by going into whatever program you use (like wilcom true sizer or pulse ambassador) to convert designs and it shows the machine and then it's format (extension).
By the way, no question is stupid if you don't know the answer! Keep on asking!
Thanks - I have a big project coming - (doing names on bags) and a friend will borrow me her Brother machine too help- she hasn't used it for years and cannot even remember the extension. Am going to use the built in font but want to convert the basting stitches I have as I am not going to hoop the bag only secure it with double sided tape and the basting stitch
stitches I have as I am not going to hoop the bag only secure it with double sided tape and the basting stitch