ruby_tdms

https://github.com/aarontc/ruby_tdms

TDMS is a binary file format for measurement data. It was created by National Instruments. National Instruments software such as LabVIEW, DIAdem, and Measurement Studio support reading and writing TDMS files. NI also provides a DLL written in C for using TDMS files on Windows. RubyTDMS provides a convenient way to work with TDMS files on Unix-like platforms. The RubyTDMS gem was formerly known as "TDMS".