What is Entropy?
Entropy is a measure of the randomness of file contents. In information theory this is of course a broader concept however applied to computing and files it tells you how unpredictable a chunk of information is. See also the related Wikipedia articles – Entropy (information theory) and Entropy (computing).
FileGlance shows you both the entropy of a whole file as well as for data chunks of a file on a scale from one to eight. The higher the Entropy the more you can assume that the file contents are compressed or encrypted.