DDF File Type

- The quick facts

What are DDF files and how to open them

Are you having problems opening a DDF file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DDF file?

DDF files have multiple uses, and Microsoft Diamond Directive is one of them.

Microsoft Diamond Directive File

The .ddf file extension is normally found in files that are considered as Diamond Directive Files, hence the extension abbreviation. The .ddf files are text files that are commonly utilized as setting files that can be edited and modified using any text editor.

The .ddf files contain instructions and information to allow compression of files into a cabinet file which is crucial to the placement of the software in disk media.

Microsoft used .ddf files to create cabinet files that are being compressed to be part of the software that was distributed on disks. Cabinet files are used to reduce the file size and the associated download time for Web content that is found on the Internet or on corporate intranet servers.

The files are used by MakeCab.exe, a utility included with Windows.

You usually do not need to edit or view these files, as they only contain information usable by the software program that uses them.

Last updated: February 25, 2022

All known file formats using extension .DDF

While Microsoft Diamond Directive File is a popular type of DDF-file, we know of 3 different uses of the .DDF extension. Different software may use files with the same extension for different types of data.

Ultiboard 4/5 Design File

These files contain PCB (Printed Circuit Board) designs created in Ultiboard by National Instruments. Ultiboard is printed circuit board design and layout software that integrates seamlessly with Multisim to accelerate PCB prototype development.

How to open DDF files

We have identified 2 DDF openers that are compatible with this specific type of DDF file.

Programs that open Ultiboard 4/5 Design files

More file formats using the DDF extension

Through our research of DDF files, we know that the following formats exist. However, we have not yet analyzed them in detail, and we would love to hear from you if you have information about either of them.

GEM Driver Definition

Various apps that use files with this extension

These apps are known to open certain types of DDF files. Remember, different programs may use DDF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

GPS Pathfinder OfficeGPS Pathfinder OfficeUser submitted
DAQMasterDAQMasterUser submitted
S/F ArrisS/F ArrisUser submitted
TatukGIS ViewerTatukGIS ViewerUser submitted
DFProDFProUser submitted
PSXMemToolPSXMemToolUser submitted
Alpha JournalAlpha JournalUser submitted
Devis FlashDevis FlashUser submitted
Magaya Document EditorMagaya Document EditorUser submitted
WaveNetWaveNetUser submitted