What is the different between KC, DL and DCL files?

I don't know what they mean and if there are stuff different between them

Anything starting with a K is for SRB2Kart. Anything starting with a D is for Dr Robotnik's Ring Racers. C means it's a character wad, L means there's Lua within.

So KC means it's a character wad for SRB2Kart, DCL means it's a wad with both characters and Lua for ring racers (usually working together) while DL just means it's a Lua file for Ring Racers.

Thank you so much! That makes much more sense now!