D43 file format description

Many people share .d43 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .d43 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .d43 files.

1 filename extension(s) found in our database.

.d43 - IAR System MSP430 Debug Data

The D43 development files are related to IAR Embedded Workbench. The D43 file is an IAR System MSP430 Debug Data. 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 Debug Data related extensions:
ParaView VTK Data File
GCC Related Data
DocBook Source Code
Android Optimized Dalvik Executable
Transact-SQL Script
FastReport v3 Form

Naturally, other applications may also use the .d43 file extension. Even harmful programs can create .d43 files. Be especially cautious with .d43 files coming from an unknown source!

Can't open a .d43 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 .d43 file extension is often given incorrectly!

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

d3, d34, d4, dr3, r43, s43

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

IAR System MSP430 Object Module
IAR System MSP430 Assembly Source Code
Disguise 3 Project
Progress OpenEdge Database
Dataphor Source Code
HERE Maps for Android Data

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 .d43 file format, then write to us!

DataTypes.net >> D43 file