G320A.DRL       Drill file - binary format
G320A.TXT       Drill file = ASCII formay
G320A.GBL       Gerber Bottom Layer
G320A.GTL       Gerber Top Layer
G320A.GTO       Gerber Top Overlay ( Silkscreen )
G320A.GBS       Gerber Bottom solder mask
G320A.GTS       Gerber Top solder mask
G320A.MAT       Materials file
STANDARD.APT    Aperture file
STANDARD.TOL    Drill file

