Open ADO files

  • Full name
    Adobe Photoshop Duotone Format
  • Developer
    Adobe Systems
  • Popularity
Have you encountered a problem with a ADO file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a ADO file here. In the further part of this page we have added a list of programs that should open your ADO file. It is enough you choose a proper application for your operating system, download and install it.

What is ADO file?

With the file extension ADO so-called Adobe Duotone Options files of the image editing software Photoshop are marked. An ADO file saves values of two colors for a duotone setting to the application on a grayscale image. In the German version of the mode is called duplex.

More info

The duplex dialog box can be reached under 'Picture-> Mode-> Duplex'. In this box values can be saved and loaded. Usually ADO files are stored under Preferences / Duplex. This makes it easy to reuse useful settings and also use them for batch processing.

Programs which can open a ADO file

How to open file with ADO extension?

In order to open a file with ADO extension one of the following programs must be installed on user’s system. If a problem with opening ADO file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with ADO files, follow the instructions below.
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Install Adobe Photoshop or other program from the list

Most often resolving problems with opening ADO files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ADO files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ADO files or offer file conversion options, but may not be capable of editing such files.

Set Adobe Photoshop as the default program for opening ADO files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ADO files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe Photoshop applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe Photoshop has been installed.

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Check the section that lists most common problems with ADO files

Sometimes problems with opening ADO files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • ADO files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open ADO files (should that be the case, please contact your system administrator or IT specialist)
  • ADO file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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