The file extension DCP identifies camera profiles for the Adobe dng (Digital Negative) format. Dcp files include camera-specific settings for hue and saturation of the three color channels and the shadows. These values are taken into account when importing raw files.
Adobe offers profiles for various cameras on its website. However, for example, you can create or modify ones yourself using the free DNG Profile Editor. Dcp files can be used in the Adobe Photoshop image-editing software and Lightroom photo management and editing software. Using a free command-line tool, DCP files can be converted into icc profiles for use in other programs.
Most often resolving problems with opening DCP files is very simple. Just install an appropriate program that supports such files. All of the listed programs support DCP files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of DCP files or offer file conversion options, but may not be capable of editing such 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 DCP 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.
Sometimes problems with opening DCP files may not lie with the application itself, but can arise due to other causes, such as: