Open ACO file

ACO files: what are they and how do I open them?

aco file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.aco file type #1: Adobe Photoshop color palette and swatches data

Files with aco extension are quite often color palettes and swatches from Adobe Photoshop graphics editing tool.

Further details:

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.

Open file with:

Adobe Photoshop icon

Adobe Photoshop

One of the best bitmap graphic editing program

Adobe Creative Cloud icon

Adobe Creative Cloud

Latest, subscription based productivity suite from Adobe

Adobe Photoshop for Mac icon

Adobe Photoshop for Mac

Mac version of popular digital image editor

.aco file type #2: ArCon object collection data

Files with aco file extension can be found as projects from ArcCon planing and designing software.

Further details:

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.

Open file with:


A software for architects and interior designers

.aco file type #3: CYANA dihedral angle constraint

An aco file extension is associated with the CYANA program. An aco file stores dihedral angle constraint.

Further details:

The aco file extension is related to the CYANA, a software for Microsoft Windows and Unix systems, which allows users to calculate structures of biological macromolecules.

The aco file contains dihedral angle constraint.

Open file with:


A program for automated structure calculation of biological macromolecules

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "" has the file extension "aco". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.