The File Extensions Database

.ACB File Extension

  • Developer by: Adobe Systems
  • Category: Settings Files
  • Format: Binary

What is an .ACB file?

.ACB is Adobe Photoshop Color Book File

An ACB file is a custom colors file used by Photoshop, an image-editing program. It contains color records, which include color names, color codes, RGB and CMYK components, lightness, and chrominance. ACB files also contain header information for the book version, title, description, color count, and other file information.

Color books are used for creating images that conform to certain color standards. For example, some color catalogs are better for screen displays while others are better for scanning or print. In Photoshop CS5, you can choose a color book when selecting the Color Libraries button from the Color Picker window. Several ACB files are provided with the Photoshop installation within the \Presets\Color Books\ directory.

Photoshop provides color books for color catalogs such as ANPA, DIC, FOCOLTONE, HKS, PANTONE, TOYO, and TRUMATCH.

NOTE: Adobe InDesign and Illustrator also use color books stored in ACB files.

Programs that open Adobe Photoshop Color Book File
Adobe Photoshop CC 2019
Adobe InDesign CC 2019
Adobe Illustrator CC 2019
Adobe Photoshop CC 2019
Adobe InDesign CC 2019
Adobe Illustrator CC 2019
File Type 2 ADX Audio Package File
Developer by: CRI Middleware Category: Audio Files Format: Binary

An ACB file is an audio package used by by various Sega Dreamcast, PlayStation 2, GameCube, and Wii video games developed by CRI Middleware. It contains ADX or ADX2 formatted audio that is used for sound effects, music, and dialogue featured in a game.

The audio stored in the ACB file is saved in the lossy ADX or ADX2 storage and compression formats. The formats were developed by CRI Middleware, a Japanese company that specializes in audio and video software in the entertainment industry.

NOTE: You can use VGMToolbox to unpack the ACB file.

Programs that open ADX Audio Package File
File Type 3 AutoCAD Color Book File
Developer by: Autodesk Category: Settings Files

Colors file used by AutoCAD, a CAD productivity application; contains a collection of colors that can be used to paint or fill lines and surfaces; sometimes used for distributing company color sets to standardize drawing colors.

Downloaded ACB files should be placed in the \Support\Color\ directory of the AutoCAD installation. The colors are available the next time AutoCAD is launched.

Programs that open AutoCAD Color Book File
Autodesk AutoCAD 2018
Autodesk AutoCAD 2018
File Type 4 AOL Cab Launcher
Developer by: AOL Category: Misc Files

Archived data format used by the America Online software installer; basically a .CAB file for AOL software installations.

How to solve problems with ACB files

  • Associate the ACB file extension with the correct application. On :
    Windows: Right click on any ACB file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.ACB files". Mac: Right click (or Ctrl-click) the ACB file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .ACB is Adobe Photoshop Color Book File. Because only the current version supports the latest ACB file format. Search, therefore, e.g. on the Adobe Systems manufacturer website after an available .ACB is Adobe Photoshop Color Book File update.
  • To make sure that your ACB file is not corrupted or virus-infected, get the file again and scan it with antivirus software.