>> A43 file

A43 file format description

Many people share .a43 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .a43 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .a43 files.

1 filename extension(s) found in our database.

.a43 - IAR System MSP430 Target Application

The A43 development files are related to IAR Embedded Workbench. A43 file is an IAR System MSP430 Target Application. IAR Systems provides completely integrated kits for development of embedded applications based on ARM, 8051, MSP430 and R8C/M16C/M32C.

IAR Embedded Workbench
Development files
- / -
IAR System MSP430 Target Application related extensions:
IAR System Special Function Register Definitions Data
IAR System MSP430 Debug Data
IAR System MSP430 Assembly Source Code
MATLAB DECStation Dynamically Linked Subroutines Data
Visual Studio Refresh Data
Visual Studio Content Data

Naturally, other applications may also use the .a43 file extension. Even harmful programs can create .a43 files. Be especially cautious with .a43 files coming from an unknown source!

Can't open a .a43 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 .a43 file extension is often given incorrectly!

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

4a3, a4e, a4r, a4w, ar3, at3, q43

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Macromedia Authorware Packaged File without Runtime
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Macromedia Authorware Windows File

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .a43 file format, then write to us!

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