Obviously this isn't an issue when you open the IDE first, then open the files through the IDE, but many times I (or many of my students) just want to double-click the sketch file itself and let the IDE open and load the sketch in one action.
Obviously this isn't an issue when you open the IDE first, then open the files through the IDE, but many times I (or many of my students) just want to double-click the sketch file itself and let the IDE open and load the sketch in one action.