How to export all setting values to a human-readable file?

[AC Question]

Just bought a Galaxy S4 and have become amazed at the multitude of settings options. It sure would be great to be able to periodically export all the setting values to a text file (or other human-readable format) for reference. There are lots of threads regarding how to transfer settings from one phone to another. All I want to do is save the settings values to a human-readable file.