1741 Microsoft Picture It! Image File 1 Image (Raster) Microsoft Picture It! is a discontinued photo editing application. MIX is its native format, and is similar though not identical to the Microsoft PhotoDraw Image Format. 1 Digital Preservation Department / The National Archives 12 Jul 2016 This format can be identified via a container signature in DROID version 6 or later. The PRONOM database cannot currently represent container signatures. 12 Jul 2016 fmt/936 PUID image/vnd.mix MIME mix File extension