>> BLW file

BLW file format description

Many people share .blw files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .blw file can be edited, converted or printed with. On this page, we try to provide assistance for handling .blw files.

1 filename extension(s) found in our database.

.blw - ArcGIS BIL World File

The BLW gis files are related to ArcGIS. BLW file is an ArcGIS BIL World File. BLW files are the ASCII files containing information for geocoding image data. Some image formats, such as ERDAS IMAGINE, BSQ, BIL, BIP, GeoTIFF, and grids, store the georeferencing information in the header of the image file. ArcGIS uses this information if it is present. However, other image formats store this information in a separate ASCII world file, since it contains the real-world transformation information used by the image.

GIS files
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ArcGIS BIL World File related extensions:
ArcGIS Option Data
ArcGIS Optional Index
ArcGIS Attribute Index
ArcGIS Auxilliary File
ArcGIS BMP World Data
ArcGIS Codepage

Naturally, other applications may also use the .blw file extension. Even harmful programs can create .blw files. Be especially cautious with .blw files coming from an unknown source!

Can't open a .blw file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .blw file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bkw, bl, bla, bld, ble, bls, bmw, bow, bpw, bw, bwl, flw, hlw, lw, vlw

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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