system.project.writeFile( Writing when not editing

is is it possible for this to work when exported as exe, or html5 is there any way to write documents in folders directly from the game

Use the Assets folder - you can put images, music, "json" files, text files there. You download these assets via the asset manager .

Are you trying to have the exported game write to the user's filesystem? In that case, see Extending your exported game.