Nintendo Desktop Manager theme file
File type: Settings, options, themes or skins file
Files with the .sdtheme file extension are theme files for Nintendo Desktop Manager.
File type category:
Settings, options, themes or skins file
Date updated: October 2, 2026
The .sdtheme file extension is associated with Nintendo Desktop Manager and is used for its default theme format. A file of this type contains a theme used to customize the appearance of the program's graphical user interface.
Nintendo Desktop Manager is old software, and the .sdtheme format is not commonly used by current applications.
Open an .sdtheme file in Nintendo Desktop Manager. You can work with these themes in the program's theme or appearance options.
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