The zip file include the following files:
1. ReadMe.txt, this file
2. pick place for c_test.txt
3. c_test.gbl, bottom layer Gerber
4. c_test.gbp, bottom paste Gerber, no film is needed
5. c_test.gbs, bottom solder mask Gerber
6. c_test.gm14, PCB dimension Gerber, no film is needed.
7. c_test.apr, aperture file.

The board dimension is 130.3mm X 56.5mm, 1.6mm thick FR4
top side could be any pattern, important is to make the
board flat. 
Surface treatment is immersion gold.