Settings file used by Adobe Photoshop, a graphics editing program; stores color transfer curves, which specify the properties of two colors that are used to generate a duotone image from a grayscale format in Photoshop; used for saving and loading duotone ink settings that can be applied to multiple images. The Duotone Options dialog box can be accessed by selecting Image ? Mode ? Duotone... in Photoshop. ADO files can be loaded and saved using this window.
File extension ADO is related to Stata application - data analysis and statistical software.