openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xltm files. It was born from lack of existing library to read/write natively from Python the Office Open XML format. All kudos to ...
clrmamepro is complicated to use, I want something simple, I do not care about rebuilding romsets, I simply want the roms I already have to work on my system by simply hidding the incompatible ones.