sa1000-B_Cu.gbl - Bottom copper layer
sa1000-B_Mask.gbs - Bottom solder mask
sa1000-B_SilkS.gbo - Bottom silk screen
sa1000-Edge_Cuts.gko - Board outline
sa1000-F_Cu.gtl - Top side copper layer
sa1000-F_Mask.gts - Top side solder mask
sa1000-F_SilkS.gto - Top side silk screen

sa1000.drl - Plated through holes drill file
sa1000-NPTH.drl Non plated through holes drill file
sa1000-drl.rpt - Drill sizes text file