Can someone please tell me where I can find the
loot_tables folder in my Minecraft directory? There is no such folder in
saves\worldname\data. This is in 1.10.
The assets are in the respective JAR file in
(On Windows 10, hold the windows button and press 'r'. type in '%appdata%', then navigate to '.minecraft', but this depends whether you are using the default launcher or something else like Curse).
Opening that with an archive manager (7-zip, WinRAR etc) will give you the internal folder structure.
assets/minecraft/loot_tables. There they are.