File list (Check if you may need any files):
Four Button
...........\Code
...........\....\Board.c
...........\....\Board.h
...........\....\define.h
...........\....\ssp.c
...........\....\ssp.h
...........\....\Touch.c
...........\Gerbers
...........\.......\Board Outline.gbr
...........\.......\Board.gbr
...........\.......\Bottom Assy.gbr
...........\.......\Bottom Mask.gbr
...........\.......\Bottom Paste.gbr
...........\.......\Bottom Silk.gbr
...........\.......\Bottom.gbr
...........\.......\INDTOUCH_4KEY_BOARD.pdf
...........\.......\NCDrill_NonPlated_Holes.drl
...........\.......\NCDrill_Plated_Holes.drl
...........\.......\SpacerGerber.gbr
...........\.......\Top Assy.gbr
...........\.......\Top Mask.gbr
...........\.......\Top Paste.gbr
...........\.......\Top Silk.gbr
...........\.......\Top.gbr