Opening a B File

The B file type is primarily associated with Visual Studio.

B	File extension: B
	File type:	source code

What is a B file?

B files mostly belong to Visual Studio by Microsoft. A B file contains source code written in BASIC programming language. Such a file can be created or executed with Visual Studio integrated development environment. B is also the filename extension of a base program written in Modula-3 programming language. Source code written in Limbo distributed systems application programming language is saved in a B file that can be compiled using Limbo. Code editors or plain text editors may be used to create or edit a B files containing source code. Another type of B file is used to save a player's progress in Grand Theft Auto video game.

How can I open a B file?

You need a suitable software like Visual Studio to open a B file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your B file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a B file directly in the browser:. Just drag the file onto this browser window and drop it.

Online B Text Viewer

Choose your .b file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert B files:

Visual Studio by Microsoft
See the previous paragraphs to learn more about the main application. B files are often referred to as Visual Studio developers because this type of file is primarily created or used by this software.
bef2c (program) by Chris Pressey
bef2c is a compiler for Befunge programming language. Source code written in Befunge language is saved in a B file. This file format is classified as Developer.
bfbuilder (source code) by zk-phi
bfbuilder is an interactive development environment with a debugger for Brainfuck programming language. It can interpret and compile a B file containing source code written in Brainfuck. This file format is classified as Developer. Related links: Brainfuck
Critical Mass Modula-3 (base program) by elego
Critical Mass Modula-3 is a compiler for Modula-3 programming language. It can compile Modula-3 source code saved in a file with B filename extension. This file format is classified as Developer.
Grand Theft Auto (saved player progress) by Rockstar
Grand Theft Auto is an action-adventure video game for PC and consoles. It saves a player's progress in a file with B filename extension. This file format is classified as Game. Related links: .b file
IRIS (data) by eurobraille
IRIS is a line of discontinued digital braille devices compatible with Windows operating system. It uses some data saved in a file with B filename extension. This file format is classified as Data.
LILO (boot loader image) by LILO Developers
LILO (short for Linux Loader) is a discontinued boot loader for Linux operating system. It uses a boot image saved in a B file. This file format is classified as Disk Image.
Limbo (source code) by Vita Nuova
Limbo is a program for compiling source code written in Limbo programming language. It can compile and execute a B file containing source code written in Limbo language. This file format is classified as Developer. Related links: Limbo
Molconn-Z (molecular data) by X Hall Associates Consulting
Molconn-Z is a molecular structure description and analysis software. It saves molecular data in a B file. This file format is classified as Data.
SmartSuite (batch list) by IBM
SmartSuite was an office productivity software suite for classic Windows and OS/2 operating systems. Its applications use a batch list saved in a file with B filename extension. This file format is classified as Data.

B file extension format:

To view or edit B files you need to know the file format, because it determines how the data in this file is stored. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Below you will find our evaluation of the B files:

The B file extension is used very often and includes different formats for different programs. The two most common formats are as follows:

30% of all B files have the same signature BLOCK. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are 190 KB to 200 KB in size, with a median of 200 KB. The file type was developed 10 years ago and is still in use today. The files contain the following words: BLOCKu. GTASAsf1.b or GTASAsf2.b is a typical file name.
3% of all B files start with the bytes @UTF crucial for this file format. They consist of illegible, cryptic characters. B files can be up to 6 MB in size, but are often around 660 KB - 2 MB. The files contain the following words: @UTF.

All other B files (67%) have no uniform format, often e.g. UnityFS, PDF and ZIP. Files like these are sometimes linked to runtimeassets, gameproject, configdata, assets, dsjc, spine, base or char. If you want to find out which format your B file belongs to, just click on the button "Choose your .b file to analyze".

Technical Data for B File Extension

File classification:

Developer

Related files:

set, col, exe, rar, zip, jpg, emap, b1, x_b, jut, blz, %5bb%5d, values, png, txt, 2, dat, ifp, bmp, journal, asm, bas, wxs

Mime type:

text/x-brainfuck, application/octet-stream, text/limbo

a b source code is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with B files

Associate the B file extension with the correct application.
Update your software that should actually open source codes. Because only the current version supports the latest B file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Visual Studio update.
To make sure that your B file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .B file online - secure, fast, and no downloads needed.