BTOA file format description

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

1 filename extension(s) found in our database.

.btoa - Ascii85 Encoded Data

The BTOA data files are related to btoa. The BTOA file is an Ascii85 Encoded Data. Ascii85 or Base85 is a form of binary-to-text encoding developed by Paul E. Rutter for the btoa utility. The btoa seems to be no longer supported.

Data files
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Ascii85 Encoded Data related extensions:
Effekseer Model Data
PSML Page Definition
Orbit Symbol Library
NinjaTrader Database
EasyOffice Mail Data
Rename Master Script

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

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

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

boa, bta, bto

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

BOA Constrictor Compressed Archive
Bend-Tech v3 Assembly File
Bryce Tree Object

Operating systems 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

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If you have useful information about the .btoa file format, then write to us! >> BTOA file