.aco file: how to open it on Windows

6 Windows apps register the .aco extension. Install one of them to open the file with a double-click.

About the format

Format

Adobe Color Swatch

PRONOM identifier

fmt/1815

Format data: freedesktop.org shared-mime-info and PRONOM (The National Archives, UK).

• C
  ColorAnt

  ColorAnt is an easy-to-use tool that measures test charts, corrects, and optimizes measurement data.

  Proprietary 11.1.0
• A
  Artweaver Free 7

  Full-featured painting tool with a huge set of predefined realistic brushes to paint creatively or just experiment. Artweaver is suitable for beginners and advanced users.

  Free 7.0.17
• A
  Artweaver Plus 7

  Full-featured painting tool with a huge set of predefined realistic brushes to paint creatively or just experiment. Artweaver is suitable for beginners and advanced users.

  Proprietary 7.0.18
• A
  Artweaver Free 8

  Full-featured painting tool with a huge set of predefined realistic brushes to paint creatively or just experiment. Artweaver is suitable for beginners and advanced users.

  Free 8.1.7.4304
• A
  Artweaver Plus 8

  Full-featured painting tool with a huge set of predefined realistic brushes to paint creatively or just experiment. Artweaver is suitable for beginners and advanced users.

  Proprietary 8.1.7.4304
• C
  Cyotek Color Palette Editor

  Cyotek Palette Editor allows you to create and work with colour palettes, in a variety of formats such as JASC, GIMP and Adobe Photoshop.

  Free 1.7.0.411

Related guide: Change the default app for a file type in Windows