.BW File Extension

Paul Haeberli
File Type:
Black and White SGI Image File

Having trouble opening .bw extension? Don't panic! This page explains what bw files are as well as suggests programs you may use to open bw files. You can download these programs through this page.

What is a BW file?

Bw file extension has Black and White SGI Image file type, developed by Paul Haeberli, which is associated with the "raster image files" category.

 Silicon Graphics Image format designed to save black and white pictures. Also a standard format for SGI workstations. Can be run-length encoded or in an uncompressed state. When an SGI image has RGB image data, extension changes to .RGB. In cases when an RGB image has an alpha channel extension is changed to .RGBA.   


To learn how you can open the given file, read the information below.

bw file icon
Paul Haeberli
File Type:
Black and White SGI Image File
Raster Image Files

How to open BW file?

Double click the bw file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .bw extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the bw extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the bw file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open BW files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the bw file as well. Download Universal File Viewer for your OS.

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