By default, all software supports multiple file extensions. Microsoft Visio 2010: Visio Viewer supports at least 2 different file extensions. The basic files that Microsoft Visio 2010: Visio Viewer supports are .VSD. However, not all of the extensions listed on the list are always used to save the effects of work in Microsoft Visio 2010: Visio Viewer. Very often, files with such extensions are used as source data files used by Microsoft Visio 2010: Visio Viewer.
Microsoft Visio 2010: Visio Viewer can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via Microsoft Visio 2010: Visio Viewer and try to save it in another file format, also supported by Microsoft Visio 2010: Visio Viewer.