How to install datapacks
How to install resourcepacks
How to install maps
Open Minecraft and select the world, you want to install the datapack, then click "Edit".
Then Click on "Open World Folder".
Then opens the explorer. Open the folder "datapacks" and paste the file in there.
Then you're FINISHED!
Open Minecraft and enter the options. Click on the option "Resource Packs..." and Click on "Open Resource Pack Folder".
Then, in the explorer, paste in the resourcepack file.
Then you're FINISHED!
Press + [R] and enter "%appdata%/.minecraft/saves".
Click "OK". Then paste the map file in.
Then you're FINISHED!