Start a Finder search. There are several ways to access Spotlight via the Finder. To quickly find any text string within any text file, try this from a terminal window: grep -l text to find files to look in For example, grep -l 123abc.html will list the name of any file in the current directory that ends in.html and contains the string 123abc. (That's a lower-case-L following the GREP) Quite pow..