Adobe Photoshop color palette and swatches data
File type: Graphics file
Files with aco extension are quite often color palettes and swatches from Adobe Photoshop graphics editing tool.
Found 3 different file type records with the same aco filename suffix.
File type category:
Graphics file
Date updated: January 2, 2025
File extension aco is associated with the Adobe Photoshop professional pixel-based graphics editing software for Windows and Mac.
A typical .aco file contains color swatch (collection of predefined colors) that are viewed in the Photoshop color palette.
Use Adobe Photoshop to open aco color palette files.
The aco color palette and swatches files can be exported to adobe color swatch exchange format (ase file extension).
Software applications that can open aco files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that create aco files:
Microsoft Windows
Apple macOS / Mac OS X
Software apps that import aco files:
Apple macOS / Mac OS X
ColorSchemer Studio
Software apps that export aco files:
Apple macOS / Mac OS X
ColorSchemer Studio
Apple iOS
Software apps that manage or store settings in aco files:
Microsoft Windows
Apple macOS / Mac OS X
Software applications that handle other tasks involving aco files:
Microsoft Windows
Apple macOS / Mac OS X
Multiplatform
On-line services
File type category:
3d graphics, CAD-CAM-CAE file
Date updated: October 19, 2018
The aco file extension is related to the ArCon planing and designing software for architects.
This type of aco file contains saved collections of objects, including building elements, furniture etc.
You can import these object collections.
Probably cannot be converted to other formats.
Software applications that can open aco files:
Microsoft Windows
Software applications that can edit aco files:
Microsoft Windows
Software capable of saving aco files:
Microsoft Windows
Software apps that create aco files:
Microsoft Windows
Software apps that print aco files:
Microsoft Windows
Software applications that handle other tasks involving aco files:
Microsoft Windows
File type category:
Various data file
Date updated: October 25, 2026
CYANA is software for calculating the structures of biological macromolecules, particularly from nuclear magnetic resonance (NMR) data. The software is available for Microsoft Windows and Unix systems.
An ACO file stores dihedral angle constraints used by CYANA during structure calculation and refinement. It is a CYANA-specific input file rather than a general-purpose interchange format.
Open the file with CYANA on Microsoft Windows or a supported Unix system. Use it as part of a CYANA structure-calculation project rather than opening it as a standalone document.
CYANA may be able to export ACO files to other formats. Conversion to another restraint format may require compatible NMR structure-calculation software and manual restructuring of the constraints.
online = can be converted online at 101convert.com
Online conversions and file conversion information are provided by 101convert.com.
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