Opening ACO Files

The ACO file type is primarily associated with Photoshop.

ACO	File extension: ACO
	File type:	color swatch file

What is an ACO file

ACO files mostly belong to Photoshop by Adobe. ACO is the extension for the Adobe Color file format. It is used by Adobe Photoshop, a raster graphics editing software. An ACO file is used to store a color swatch, which is a collection of predefined colors. It is a binary format that allows saving and exporting color palettes in Photoshop. Swatches can be managed in the Swatches window in Photoshop. Preset color swatches are available in the software by default. The default library also stores presets for several colour standards such as ANPA, FOCOLTONE, HKS, PANTONE, TOYO, and TRUMATCH, which can be used to ensure conformity to those standards. Users can also make their own custom swatches. ACO files are saved in the \Presets\Color Swatches\ folder of the installation directory. The ACO file format is also used by ArCon, an architectural design and planning software. In this case, it is used to store a project file created in ArCon.

How to open ACO files

You need a suitable software like Photoshop to open an ACO file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ACO file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ACO file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ACO Text Viewer

Choose your .aco file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert ACO files:

Photoshop by Adobe
See the previous paragraphs to learn more about the main application. ACO files are often referred to as Photoshop settings because this type of file is primarily created or used by this software.
ArCon (object collection data file) by TRIXL
ArCon (planTEK) is a 3D CAD (Computer-Aided Design) planning and design software developed by TRIXL for architects, interior designers, house planners, furniture manufacturers, real estate agents, etc. It is commonly used for creating 2D/3D house plan drawings. The ACO file is an object collection data file that contains saved collections of objects, including building elements, furniture, etc. This file format is classified as CAD. Related links: General Information, Hardware Prerequisites, Free 3D Models in Format ACO
Fast-Talk (acoustic model file) by Fast-Talk Communications
Fast-Talk is a discontinued phonetic search software developed by Fast-Talk Communications for performing high-speed searches of audio and video contents. This software used the smallest speech units called phonemes for identifying words or phrases regardless of spelling or the speaker. The ACO file was an acoustic model file that described what each phoneme in the language sounds like at a given bit rate. This file was used for indexing. This file format is classified as Data. Related links: FAQ From Archive, Fast-Talk Info From Archive, Contact From Archive

ACO file extension format:

Every file has a defined file format, i.e. how the data is arranged in the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. File extension, signature and file format must match; otherwise errors will occur when the file is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our analysis of the ACO files produces the following result:

The ACO file ending has no uniform or dominant file format. However, the following two file formats are common:

6% of all ACO files use the same file format, which can be identified by the letters "08 41 43 4F 20 56 31 2E 30" at the beginning. They consist of illegible, cryptic characters. The average file size is 290 KB with most files being between 39 KB and 610 KB in size. The following keywords are characteristic: ACO V1.0.

All other ACO files (94%) have no consistent format. Tagged as page, design, landing, logo, mobile, concept or color. If you want to find out which format your ACO file belongs to, just click on the button "Choose your .aco file to analyze".

Technical Data for ACO File Extension

File classification:

Settings

Related files:

eco, aso, img, ase, co, o2c, apo, acu, ac, xd, bundle, psb, acb, ast

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: AcoObject
EXEFile: rundll32 %SystemRoot%\System32\O2CPLA~1.OCX,DisplayObject %1

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Adobe Photoshop CS\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 5.0 LE\Photosle.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 5.5\Photoshp.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 6.0.1 CE\Photoshp.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 6.0\Photoshp.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 7.0\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop CS\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 2\Photoshopelements.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 3.0\PhotoshopelementsEditor.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements\PhotoshopElements.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Photoshop Elements 2\Photoshopelements.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop 5.0\Photoshp.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\adobe\photoshop cs\photoshop.exe does not exist.

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Photoshop7\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Photoshop CS\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%r\Adobe\Photoshop 7.0\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 4.0\PhotoshopelementsEditor.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 5.0\PhotoshopelementsEditor.exe

ProgramID: ArtweaverColorSwatch
EXEFile: %ProgramFiles%\Artweaver\Artweaver.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\PhootoshopCS\Adobe Photoshop CS3\Photoshop.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Photoshop Elements\Photoshopelements.exe

ProgramID: Photoshop.SwatchesFile
EXEFile: %ProgramFiles%\Adobe\Photoshop Elements 6.0\PhotoshopelementsEditor.exe

Show all 25 listings To Top

an aco color swatch file is a special file format by Adobe and should only be edited and saved with the appropriate software.

How to solve problems with ACO files

Associate the ACO file extension with the correct application.
Update your software that should actually open color swatch files. Because only the current version supports the latest ACO file format. Search, therefore, e.g. on the Adobe manufacturer website after an available Photoshop update.
To make sure that your ACO file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ACO file online - secure, fast, and no downloads needed.