To install Adobe Camera Raw presets in Photoshop, first download and unzip the your files.
*Mac(user)/Library/Application Support/Adobe/Camera Raw /Settings
* Win(user)/Application Data/Adobe/Camera Raw/Settings
Copy the preset files (.xmp) into the 'settings' folder. Copy only the .xmp presets not the entire folder.
On a Mac, the Library menu can be hidden. To reveal a hidden library, hold the Option key down while selecting the “Go” menu in the Finder.
If you continue to have issues and are on a MAC:
Sometimes the Settings Folder can be hidden and you will need to access it from a different method: On your main screen hold down command + shift + g
Paste in:/Users/YOURUSERNAMEHERE/Library/Application Support/Adobe/CameraRaw/Settings *Change YOURUSERNAMEHERE to your user name.