With the file extension SHH setting files for depth and light effects (Shadow / Highlight) of the image editing software Adobe Photoshop are marked. In SHH files, values for Strength and the radius of a shadow or highlight are stored. In addition, adjustment values for, for example, color corrections and mid-tone contrast are stored therein.
The window for shadows / highlights can be found under 'Image-> Adjustments-> Depths / Lights'. SHH files can be loaded and saved here.
Most often resolving problems with opening SHH files is very simple. Just install an appropriate program that supports such files. All of the listed programs support SHH files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of SHH 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 SHH 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 SHH files may not lie with the application itself, but can arise due to other causes, such as: