Source code has two functions ... For people to read, and for machines to read and compile or execute. The project->Export menu item gives you the .aia source file, which (short of 7zip surgery) is good only for Project->Import on another server or user account. The .scm and .bky files might be interesting, like taking apart an alarm clock, but they are not meant to be exposed to usual developers.
Block images are necessary but not sufficient for debugging, as the Designer component Attributes are important too.