To restore, simply paste your backed-up files back into the original directory, overwriting the existing ones.
Bus Simulator 18 stores its save data locally on your computer. Depending on your version (Steam or Standard Windows), the location varies: bus simulator 18 save game
/steamapps/compatdata/515180/pfx/ .
To quickly access the folder on Windows, press [Windows] + [R] , type %LOCALAPPDATA% , and navigate manually through the BusSimulator18 folders. To restore, simply paste your backed-up files back
%LOCALAPPDATA%\BusSimulator18\Saved\SaveGames\ . press [Windows] + [R]
\userdata\ \515180\remote\SaveGames\ .