files included:
readme.txt		this file
stcv4.drl		binary drill file
stcv4.drr		ASCII drill report file
stcv4.g1		inner layer 1 GERBER file
stcv4.g2		inner layer 2 GERBER file
stcv4.gbl		bottom layer GERBER file
stcv4.gbo		bottom silkscreen GERBER file
stcv4.gbp		bottom paste mask GERBER file
stcv4.gbs		bottom solder mask GERBER file
stcv4.gdl		manufacture GERBER file
stcv4.gp1		internal plane 1 GERBER file
stcv4.gp2		internal plane 2 GERBER file
stcv4.gp3		internal plane 3 GERBER file
stcv4.gp4		internal plane 4 GERBER file
stcv4.gtl		top layer GERBER file
stcv4.gto		top silkscreen GERBER file
stcv4.gtp		top paste mask GERBER file
stcv4.gts		top solder mask GERBER file
stcv4.pap		pick and place ASCII file
stcv4.txt		ASCII drill file