.cmp	Top, component side
.ly2	Layer 2
.l15	Layer 15
.sol	Bottom, solder side
.plc	Silk screen, on top layer
.pls	Bottom silk screen (Not used)
.stc	Stop mask, top side
.sts	Stop mask, bottom side
.crc	Cream, top side
.crs	Cream, bottom side
.dri	Drill Station Info File
.drd	Drill Data