CSV49 forgives you for wasting productive human hours reinventing the wheel provided you prevent the next developer from doing the same.
CSV49 is short for Comma Separated Values For Nigeria.
See blog post for the full story.
CSV1: States codes and geopolitical zones by @olibenu
CSV2: Geopolitical zones by @olibenu
CSV3: States. LGAs and Geolocation by @kehers
CSV4: GSM Network Providers Phone Number Prefixes by @olibenu and @pystar
CSV5: States and Capital Geolocation by @olibenu
CSV6: Universities by @kehers
CSV7: Universities, Polytechnics and Colleges by @funsholaniyi