BLL file format description

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

3 filename extension(s) found in our database.

.bll - Binary Lasergraphics Language Document

The BLL document files are related to WinRascol. The BLL file is a Binary Lasergraphics Language Document. Each BLL files contains the information to produce one slide on the Lasergraphics slide recorder.

Document files
- / -
Binary Lasergraphics Language Document related extensions:
Mastercam X Document
MotionMagix Creative Suite Published Data
Ichitaro 4.0 Document
ProPresenter 4 Bundle
ASAP2 ECU Description

.bll - ENVI Bad Lines List

The BLL data files are related to ENVI. The BLL file is an ENVI Bad Lines List. ENVI image analysis software is used by GIS professionals, remote sensing scientists, and image analysts to extract meaningful information from imagery to make better decisions.

Data files
- / -
ENVI Bad Lines List related extensions:
ADS40 Orientation Adjustment Data
ADS40 Header Data
ENVI Annotation Data
ADS40 Camera Calibration Data
ENVI Calibration Factors Data
ENVI PPI Count Data

.bll - Delphi Localization Data

The BLL development files are related to Embarcadero Delphi. The BLL file is a Delphi Localization Data. Delphi is a software product that uses the Object Pascal programming language and provides an integrated development environment (IDE) for rapid application development of desktop, mobile, web, and console software.

Embarcadero Delphi
Development files
- / -
Delphi Localization Data related extensions:
ESock Module Information
GLBasic Source Code
GitHub Flavored Markdown Document
Android Build Properties Data
M-Tx Music-From-Text Source Code
Visual Studio ASP.NET Web Page

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

Can't open a .bll 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 .bll file extension is often given incorrectly!

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

bil, bkl, bl, bl1, bli, blk, blm, blo, blp, bml, bol, bpl, fll, gll, hll

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

KeyCarbon Binary Keystroke Log
Binary Linework TIFF Image
Rightmove Bulk Load Mass Data
Borland Package Library
ProWorx NXT Block Data File
Descent Mission Builder Block

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .bll file format, then write to us! >> BLL file