@Fic(View Post) The Saves folder can be opened if you press the little button in TPT. It's next to the pause button. In the options menu, select "Open Data Folder" and you'll get a Finder window with all TPT data inside. You need to look inside the "Saves" folder there.
Other useful folders are "Stamps" for your stamps, and "Brushes" if you want to install custom brushes.