ems it is up to the user to know what the format is, although there are more-or-less strict file-naming conventions. The multiplicity of file formats is a continuing problem for both software developers and users. [Computer and Information Sciences] 
depicted as folders (like small briefcases). [Computer and Information Sciences] 
n., A formula at the end of the text of a document intended to ensure the execution of the act embodied in the document, or avoid its violation, guarantee its validity, preserve t