Files with b1 file extension can also be found as game data files from Cats Mah Jong Solitaire.

There are 2 other file types using
the B1 file extension!

b1 icon.b1 - B1 compressed archive

empty icon.b1 - VTrain data

Detailed description

Software that open b1 file

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B1 file extension - Cats Mah Jong Solitaire game data

What is b1 file? How to open b1 files?

File type specification:

Game file type icon Game file type

The b1 file extension is also used by Cats Mah Jong Solitaire, one of  the best mah jong solitaire software. These files contain game resource data.

Most likely some old format without support. No further information could be found.

This b1 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.

The default software associated to open b1 file:

Cats Mah Jong picture or screenshot

Cats Mah Jong  Microsoft Windows software

Company or developer:
21st Software

Cats Mah Jong is a bundle of Chinese puzzle games with plenty of functions and in nice graphics settings. At the start of each game, the tiles are randomly stacked in a layout. A player clicks on two matching tiles, which are then removed from the board. The goal is to remove all the tiles from the board. With most of the tiles hidden or trapped under another tile at the beginning of the game, winning the game is a challenge.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .b1 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

List of recommended software applications associated to the .b1 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 b1 file, edit b1 file, convert b1 file, view b1 file, play b1 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with b1 file - Cats Mah Jong Solitaire game data

Click on the software link for more information about Cats Mah Jong. Cats Mah Jong uses b1 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:

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