You can transfer save files but it is best to start a new one in each update to prevent crashes or bugs. If you wish to transfer your save to a new version just by going into the main folder 'WindowsNoEditor', down to 'GrowthRPG', down to 'Saved', down to 'SaveGames'. In this folder you would want to take anything relevant but "Save0.sav", etc, are your saved files. Once placed into the new version you should be able to start where you left off.