Files
allwpilib/datalog

datalog

DataLog is a simple, fast, binary logging format designed to be more advanced than logging converting values to strings, while maintaining speed on embedded platforms. More about the motivation can be found in the DataLog format specification.

Also see the Kaitai Struct file, which uses Kaitai Struct to declaratively describe the DataLog format and allows for generating libraries in other languages to parse DataLog files.