There are 8 other file types using
the B file extension!

empty icon.b - BASIC language source code

empty icon.b - Modula-3 base program file

empty icon.b - Grand Theft Auto III saved game

empty icon.b - IRIS editor shortened format file

empty icon.b - LILO Boot Loader image

empty icon.b - Limbo implementation file

empty icon.b - Molconn-Z format

empty icon.b - BuRg3r definition file

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B file - IBM Lotus applause batch list

What is b file? How to open b files?

File type specification:

Various data file type icon Various data file type

The b file extension is associated with the Lotus software suite developed by IBM that allows users to create documents, spreadsheets, presentations and organize information, tasks, memos etc.

The b file stores various data used for internal purposes of the IBM Lotus.

This b file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Updated: July 2, 2018

The default software associated to b file type:

Lotus 1-2-3 icon

IBM logoLotus 1-2-3  Microsoft Windows software

Company or developer:
IBM

IBM Lotus 1-2-3 is spreadsheet application very popular in 80s and 90s of 20th century. It was released for Microsoft Windows, MS-DOS, Mac OS and OS/2. In 2002 IBM stopped the developing of the IBM Lotus 1-2-3. In the latest versions is Lotus 1-2-3 fully compatible with Microsoft Excel.

Lotus Organizer picture or screenshot

IBM logoLotus Organizer  Microsoft Windows software

Company or developer:
IBM

Lotus Organizer is time planner and organizer developed by IBM. It is able to manage calendar, contacts, notes etc.

Lotus Domino icon

IBM logoLotus Domino  Microsoft Windows software

Company or developer:
IBM

Lotus Domino is collaboration software developed by IBM. It can be used as a core e-mail and enterprise scheduling application for companies.

Help how to open:

Probably not meant to be accessed by the user

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .b 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 b file, edit b file, convert b file, view b file, play b file etc. (if exist software for corresponding action in File-Extensions.org's database).

  • Others b file

Unspecified and all other actions for computer programs working with b file - IBM Lotus applause batch list

Click on the software link for more information about Lotus 1-2-3. Lotus 1-2-3 uses b file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).

Microsoft Windows:

Main software associated with b file by default:
Lotus 1-2-3 small icon Lotus 1-2-3
Lotus Organizer
Lotus Domino small icon Lotus Domino

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