Look to see if you have a .asv file (Windows) or a filename whose extension ends in ~ (on mac)
I am not sure whether the autosave name for livescript is the same .asv extension though.
Also if you look at the first entry in your matlab path (pathtool is probably the easiest way) then it will name a temporary directory. That temporary directory might contain files with fragments of the MATLAB code itself -- fragments that were written there while MATLAB was executing the livescript files (it cannot execute the files directly and has to extract the MATLAB from them.)
