>> BNN file

BNN file format description

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

1 filename extension(s) found in our database.

.bnn - FLUKA Binary Data

The BNN data files are related to FLUKA. The BNN file is a FLUKA Binary Data. FLUKA is a fully integrated particle physics MonteCarlo simulation package. It has many applications in high energy experimental physics and engineering, shielding, detector and telescope design, cosmic ray studies, dosimetry, medical physics and radio-biology.

Data files
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FLUKA Binary Data related extensions:
PMMail Mail Index
MOUSE Runoff Data
SLOW5 Binary Data
OmniPage Training
ChessDB Game Data
Notesbrowser Data

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

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

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

bgn, bn, bnb, bng, bnh, fnn, nn, nnn

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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