While the long established Format for Information Exchange (ISO 2709) and its American counterpart, Information Interchange Format (ANSI Z39.2) enable the creation of efficiently compressed MARC data files, XML and other text based data files lack such a standard. Instead general file archiving and tools (e.g. .ZIP and TAR etc.) can be used to enable more efficient and rapid file transfer of data. Such tools can also simplify the management of multi-file sets by enabling all such files to be combined into a single archive together with any related documentation.