Import into Corel Draw and use raster not vector, to burn away the kapton film. For a 35W or 45W epilog, 30% speed and 100% power at 600 dpi made for a nice clean edge. Be sure to gently rub the stencil with water and a paper towel to get rid of the burnt kapton.
I usually use the Dimension layer info to make a jig for silkscreening by cutting out the PCB outline in a 0.062'' (1/16th) clear acrylic sheet.

Here is a LFCSP 16 (4mm on each side) cut out of 2 mil kapton as above.
This guide was first published on Feb 25, 2013. It was last updated on Feb 25, 2013.
This page (Cut!) was last updated on Oct 24, 2020.