I don't know who did that , there doesn't seem 2 be any clue on the readme or anything.
Although I'm not sure exactly what GBB files are for now , I tried playing after i deleted 'TEXT' and 'TEAM NAMES' files , but didn't make any difference.
What I am really interested in is the files that u can change gameplay stuff like weather and number of overs a day and stuff , I thought these were GBB files , but I'm not so sure now.