TileConverter 1.0.1.0 is a special purpose sequential step tool you can use to convert MapBox "https://docs.mapbox.com/studio-manual/reference/tilesets/" tilesets to "../Z/X/Y.png file Tile-Caches" and Tile-Caches to MapBox tilesets as used by the MarinePlotter App at "http://www.djm.clubcruceros.net/MarinePlotter/MarinePlotter.html"
and the MECS App at
"http://www.djm.clubcruceros.net/MECS/MECS.html".