Fillet works very well only snag is it doesn't work on contours unless they are broken from original object and then it will round the inside curves too, this is not always wanted for an outline/contour, so you can either do this with the outline tool using round corners, place behind and weld or use a VBA script available that only works on the contour.
I can upload the script if anybody wants it but I'm not sure how.
Alan D