Im having trouble with biomes...

[world]

I recently downloaded aim's grassland biome reskin. I extract the folder containg the file into the downloads folder, but  the biome doesnt change ingame. Is there something that Im doing wrong?Or? Thanks in Advance!!

[Hippogriff12]

Did you put the whole folder in? If you did, open the folder and take everything out of there and put those in the downloads folder