2. Extract the contents, it has again two zips: The editor "RokojoriGodot" and the C# libraries "RokojoriGodotNuGetLibraries".
3. RokojoriGodot contains the Godot 4.3 Editor including the bindings for C++/GDScript.
Extract the directory to a location where you want the Godot Editor to be.
4. RokojoriGodotNuGetLibraries contains the C# Libraries.
They need to be copied to your Windows User directory and a command for registring the library needs to be executed.
An installation readme.txt is included it has more details how to do this.
5. Go to the directory where you extracted the editor and open godot.windows.editor.x86_64.mono.exe