I added a tileset to my map in this way:
File -> New tileset -> embed in map marqued -> and I added the tileset
Now I want to replace that tileset.
How can I replace that tileset in Tiled ?.
You want to change the image referenced by the tileset?
Since it’s an embedded tileset, you should probably click the “Edit Tileset” button below the tileset view and change the parameters in the Tileset > Tileset Properties.