Installing and Uninstalling Profiles
Most profiling software automatically installs freshly generated profiles, but you will have to install many downloaded profiles manually.
Mac OS X. Profiles have the file extension “icc”. Simply move or copy the profile to one (or all) of the following locations:
Mac OS X
[a] These profiles are accessible to all users, but you will need administrator privileges to add or delete them.
[b] These profiles are only accessible to the specific user and can be added or deleted by the user.
[c] These profiles are managed by the operating system and should be left alone.
Adobe applications use an additional location ...