B2A file format description

Many people share .b2a files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .b2a file can be edited, converted or printed with. On this page, we try to provide assistance for handling .b2a files.

1 filename extension(s) found in our database.

.b2a - Btoa Encoded File

The B2A data files are related to StuffIt Deluxe. The B2A file is a Btoa Encoded File. Ascii85, also called Base85, is a form of binary-to-text encoding developed by Paul E. Rutter for the Btoa utility.

StuffIt Deluxe
Data files
- / -
Btoa Encoded File related extensions:
CATIA Export Data
Frotz Z-Code Data
Coherent X-ray Imaging Data
Adobe RoboHelp Stop Word List
VBMaximizer Data
ScreenShare Compressed Data

Naturally, other applications may also use the .b2a file extension. Even harmful programs can create .b2a files. Be especially cautious with .b2a files coming from an unknown source!

Can't open a .b2a 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 .b2a file extension is often given incorrectly!

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

b2, ba, ba2, bea, bqa, bwa, bza, g2a, v2a

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Scifer External Header Archive
BSC Intermediate Object
TI Voyage 200 Figure Data
Landsat 8 Quality Assessment Band Data
Bethesda Softworks Archive
VTrain Data File

Operating systems

DataTypes.net 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 .b2a file format, then write to us!

DataTypes.net >> B2A file