What game engine are you using? The tiles sheets with the A1, A2 etc suffix are edited for use in RPG Maker.
EDITED
After I learned more about Godot, I was able to create something I liked using the "Terrain/Dirt Edges.png".
Awesome! This looks like it's set up perfectly!
Hello, may I ask how the animation of water is implemented
There are lots of short , simple tutorial videos if you do a Google search for "animated tiles Godot".
I watched this video and used it to learn how Godot's animated tiles feature works