comments fixed
comments added
comments added
typo
show the save dialog only if it is the first time
once cleared both listbox, load the first message, may be it could be removed in the future
rename frames
project name on frame title
append text to the log field after save or open the project
fixed error if files were added, so is not necesary the use of *.*
del comment
global variable self.OUT_FNAME = 'outfile.csv'
put in a function the code to compute the average in case of a invalid value
when row or col are out of bounds
quit menu and related events
minor details