PNA (Portable Network Archive) is a highly scalable archive format that can be compressed, encrypted, and split. Also, its data structure is inspired by the PNG data structure.
Read and write MEF 3.0 (Multiscale Electrophysiology Format) EEG, iEEG and ECG recordings from Python, MATLAB and C++. One C++ core, compatible with meflib, pymef and mef_tools.
Pure-Python reader/writer for VBA macros embedded in Excel / PowerPoint / Word files. Zero dependencies, deterministic round-trip, safe on protected and signed projects.
Simple Hierarchical Config Language: forgiving to write, predictable to read. Types live in your code, not the file, and one bad line never breaks the rest.
An open format for evidence someone else can check. One signed, chained, anchored file, verified offline by a free Apache-2.0 tool with no account and no server.