Hey Winlu :)
I love your work and wanted to purchase both interior and exterior tilesets, but for some reasons itch.io has issues with the payment via PayPal. I've just found out that those tilesets are also available for RPG Maker MZ on Steam, but since I don't have that software I'm in doubt: if I purchase those, will I have access to the assets in a normal .png/.aseprite format or will they be in some RPG Maker-specific one?
Have a great day.