microsoft/Exercise-Recognition-from-Wearable-Sensors ? reverse-engineered prompt

Build me a simple way to explore this wearable exercise dataset in MATLAB.

I want one script that loads the sample .mat files, walks me through the data format, and shows me what’s inside in a clear, friendly way. It should let me pick the single exercise and multi exercise files, display the key fields, and plot a few example accelerometer and gyroscope signals so I can understand how the recordings are organized. If it helps, make the script print short explanations as it runs, and include comments so a beginner can follow along.

Also tidy up the README a little so it clearly explains how to start, what the dataset contains, and how to use the loader script without needing to read the paper first. If you need to look up any current MATLAB docs or best practices for loading and plotting .mat data, go ahead and do that.