ACO file extension
The table below provides useful information about the .aco file extension. It answers questions such as:
- What is the .aco file?
- What program do I need to open a .aco file?
- How can the .aco file be opened, edited or printed?
- How can I convert .aco files to another format?
Table of Contents
We hope you find this page helpful and a valuable resource!
3 extension(s) and 0 alias(es) found in database
✅ Adobe Photoshop Custom Swatch

ACO file is an Adobe Photoshop Swatch. ACO file is used in Photoshop as a set of colors named a swatch. Adobe Photoshop is a graphics editor published by Adobe Systems. It is the market leader for commercial image manipulation.
✅ CYANA Dihedral Angle Constraint File

ACO file is a CYANA Dihedral Angle Constraint File. CYANA is a program for automated structure calculation of biological macromolecules on the basis of conformational constraints from NMR.
✅ ArCon Object Collection

ACO file is an ArCon Object Collection. ArCon (planTEK) is a modern planning and design software for architects.
Other types of files may also use the .aco file extension.
🚫 The .aco file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .aco file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Windows cannot open this file:
example.aco
To open this file, Windows needs to know what program you want to use to open it...
If you don't know how to set the .aco file association, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .aco file extension, write to us!