For anyone interested, here's a free FPK unpacker for Civilization: Beyond Earth.
Repository: https://gitorious.org/lrn-tools/fpk
Download: https://gitorious.org/lrn-tools/fpk/archive/0.1.zip
Requires Python3 (confirmed to work with CPython 3.4.2)
Repository: https://gitorious.org/lrn-tools/fpk
Download: https://gitorious.org/lrn-tools/fpk/archive/0.1.zip
Requires Python3 (confirmed to work with CPython 3.4.2)