Well, first you locate the saves and then you just move the files from one device to the other.
The location for Android would be:
Android/data/com.domain.corruptedkingdoms/files/saves
NOTE: You may need a different file manager if the one you have can't find or interact with the files (Solid Explorer is recommended)
And the location on Windows would be:
%appdata%\RenPy\CorruptedKingdoms-1547378918
NOTE: type that in the explorer's address bar,