Problems understanding DES LUT format

[lucianoloder]

I am trying to use Daredevil to attack a DES repository that i have, and in order to do it i need to use some LUT.

The three LUTs available for DES are one containing the SBOXes (DES_SBOX), one containing a partial sbox (DES_SBOX_SMALL) and one contaning a set of numbers in order (DES_BEFORE_SBOX)

I saw that this file is read, stored in conf.sbox and used in construct_guess_DES , but i have not figured out the format it should have, and the attack is not returning the correct keys, even with 60k traces.

Can anyone explain this file a little bit for me?
Thanks in advance.