atlasL1.pho - Top component side, layer 1
atlasL2.pho - Inner signal, layer 2
atlasL3.pho - Inner power mixed, layer 3
atlasL4.pho - Bottom signal, layer 4
atlasDDG.pho - Drill drawing
atlasTSK.pho - Top silkscreen
atlasTSM.pho - Top soldermask
atlasBSM.pho - Bottom soldermask
atlasASY.pho - Top assembly drawing w/ board outline
atlasNCD.drl - NC drill file