The File Extensions Database

.BLW File Extension

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

What is an .BLW file?

.BLW is Adobe Photoshop Black and White Presets File

Settings file used by Adobe Photoshop, an application used for creating and editing raster graphics; contains color settings for converting an image to a black and white format; contains the percentages of red, yellow, green, cyan, blue, and magenta colors to include in the resulting image, as well as hue and saturation values.

BLW presets files are commonly used for converting digital photos to black and white images. Digital photographers benefit by being able to filter various colors and create custom black and white pictures.

The Black and White window in Photoshop can be opened by selecting Image → Adjustments → Black & White.... Photoshop CS5 includes the following default Black and White presets:

  • Blue Filter
  • Darker
  • Green Filter
  • High Contrast Blue Filter
  • High Contrast Red Filter
  • Infrared
  • Lighter
  • Maximum Black
  • Maximum White
  • Neutral Density
  • Red Filter
  • Yellow Filter
The BLW files are stored in the /Presets/Black and White/ directory of the Photoshop installation.

Programs that open Adobe Photoshop Black and White Presets File
Adobe Photoshop CC 2019
Adobe Photoshop CC 2019

How to solve problems with BLW files

  • Associate the BLW file extension with the correct application. On :
    Windows: Right click on any BLW file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.BLW files". Mac: Right click (or Ctrl-click) the BLW 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 .BLW is Adobe Photoshop Black and White Presets File. Because only the current version supports the latest BLW file format. Search, therefore, e.g. on the Adobe Systems manufacturer website after an available .BLW is Adobe Photoshop Black and White Presets File update.
  • To make sure that your BLW file is not corrupted or virus-infected, get the file again and scan it with antivirus software.