Data file used by Black and White, a strategy game released by Lionhead Studios in 2001 where players act as gods and control villages and creatures; stores various kinds of data for the game. ZZZ files use names that associate their data with another file type. For example, "\Data\Citadel\engine\movement_l3d.zzz" is associated with the .L3D file type.
File created by CCleaner, a utility used for optimizing computers by removing unused programs and files; stores a deleted file that has been securely wiped, which enables greater security since the original filename no longer exists; uses the filename ZZZZZZZZ.ZZZ.