Parameters
- defaultExtension
- Optional extension of the default file type. It is used to set the SelectedFilter property of the save file dialog shown by this method. If not set, the value of the DefaultFormatExtension property will be used.
Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)