An identifying name given to a computer file.
 Example sentencesExamples
-  You can see not only the address of the file being downloaded but the filename too.
 -  One thing to watch out for when encrypting filenames is that filenames must remain valid after encryption.
 -  The application is responsible for mapping this identifier back to the filename.
 -  It will not be named with reference to its absolute filename or address as filenames and addresses have a tendency to change.
 -  The protocol name is simply the filename, excluding any file extension.