Calibre supports many file formats and reading devices. A number of lossless audio compression formats exist. There are two different Flash Video file formats&colon; FLV and F4V. The app is compatible with Microsoft Excel file formats. The apps are compatible with Microsoft Office file formats. Tracks may be exported to any of the available file formats. Some companies use firmware updates to add new playable file formats (codecs). Specifications of later versions of Microsoft Office binary file formats were not publicly available. The Miro Video Converter converts video formats. Keynote supports a number of file formats. The app is compatible with Microsoft Office file formats. Such compression is a feature of nearly all modern lossy audio compression formats. The Galaxy S II comes with support for many multimedia file formats and codecs. DVRs store images in a variety of proprietary file formats. Graphics are also converted to standard formats and sizes.