All of Signcuts releases work with most vector design programs. Signcut provides direct plugins for the latest revisions of Corel Draw, Inkscape and Illustrator. In order to use the plugins for these programs please be sure youare using the latest revisions of both Signcut and the Design software of your choice.
In Illustrator you will find the Export command in the file menu. If it is not present please open signcut and from the help menu choose reinstall plugins.