The File Extensions Database

.ADO File Extension

  • Developer by: Adobe Systems
  • Category: Settings Files
  • Format: Binary

What is an .ADO file?

.ADO is Adobe Photoshop Duotone Options File

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.

Programs that open Adobe Photoshop Duotone Options File
Adobe Photoshop CC 2019
Adobe Photoshop CC 2019

How to solve problems with ADO files

  • Associate the ADO file extension with the correct application. On :
    Windows: Right click on any ADO file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ADO files". Mac: Right click (or Ctrl-click) the ADO file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ADO is Adobe Photoshop Duotone Options File. Because only the current version supports the latest ADO file format. Search, therefore, e.g. on the Adobe Systems manufacturer website after an available .ADO is Adobe Photoshop Duotone Options File update.
  • To make sure that your ADO file is not corrupted or virus-infected, get the file again and scan it with antivirus software.