Files with bil file extension can be found as GIS images typically used in ESRI ArcView GIS (geographic information system) software.
There are 3 other file types using
the BIL file extension!
.bil - Satellite image file
.bil - RiadaBillboard project document
.bil - Lisp source code
Software that open bil file
BIL file extension - ArcView band interleaved by line image format
What is bil file? How to open bil files?
File type specification:
The bil file extension is associated with ESRI ArcView GIS software.
The bsq, bil, and bip formats represent ways of storing 24-bit images in memory or on disk.
The initials stand for band-sequential, band-interleaved-by-line, and band-interleaved-by-pixel, respectively.
These image formats are also sometimes called "band-interleaved", "row-interleaved", and "pixel-interleaved", respectively.
The default software associated to open bil file:
ArcGIS for Desktop Basic (ArcView) 
Company or developer:
Esri
ArcGIS for Desktop Basic (formerly known as ArcView) is GIS (geographic information system) application used to visualizing, managing, creating, and analyzing geographic data.
ArcGIS for Desktop Basic is a part of the ArcGIS Desktop. ArcGIS for Desktop Basic supports creation of interactive maps, spatial analysis, GIS deployment, map viewing and navigation, map printing etc.
List of software applications associated to the .bil file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open bil file, edit bil file, convert bil file, view bil file, play bil file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting bil files.
Software that open bil file - ArcView band interleaved by line image format
Programs supporting the exension bil on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open bil file action.
Microsoft Windows:
Main software associated with bil file by default:
ArcGIS for Desktop Basic (ArcView)
Other suggested software:
Global Mapper
