1630 3MF 3D Manufacturing Format Model 3MF is an XML-based data file format published by the 3MF Consortium for additive manufacturing (3D printing). 1 Digital Preservation Department / The National Archives 21 Dec 2015 This format can be identified via a container signature in DROID version 6 or later. The PRONOM database cannot currently represent container signatures. http://3mf.io/what-is-3mf/3mf-specification/ 21 Dec 2015 application/vnd.ms-3mfdocument MIME fmt/829 PUID 3mf File extension Has priority over 1456 Open XML Paper Specification