im not sure, but either it'll work straight off... or there's some converter... (not sure but that's my guess)
and adding shouldn't bee to hard (though I have no clue, but there's almost always a button for "add save" or just drag and drop (with the exact same name))...
But, what kind of save do you want?
Just a beginning save file, or a completed pokedex save file?
(i don't have any save, but for others who might have, it'd be useful to know WHAT save
)