What Is an ACO File?
A file with the ACOfile extensionis an Adobe Photoshop color file that stores a collection of colors.
These are located in the\Presets\Color Swatches\folder of the installation directory and are automatically loaded when the program opens.
The online image editorPhotopeacan import ACO files, too, through a similar swatches menu as Photoshop.
Open that panel throughWindow>Swatches, and then selectLoad .ACOfrom the panel.
ACO project files are associated with softwareArCon(planTEK).
Still Can’t Open It?
ACFandAC3files, for example, are strikingly similar but shouldn’t be treated exactly like ACO files.
AC files are another example.
Instead, AC files could be Autoconf scripts or AC3D 3D files.
Import the ACO file into Photoshop, then select toPlus(+) in the lower-right corner.
you might then go toMenu>Export Select Swatchesto save a new ACO file with the included swatches.
