I called corel and asked about corel 7. I am now a user of corel 5. I export drawings to a milling using hpgl (plt) files. The girl at corel advised me to go ahead and buy 7 it could do the same thing.. After I installed 7 there is no plt file extension avail in the export function... any help here....????? Do I have to buy another version...?? My corel 5 master disk has been destroyed is why I have this dilema....