File Extension Database

Open DDF File

DDF is a Diamond Directive File, hence the origin of the acronym DDF, and is used to specify the properties to compress a CAB extension file.

The Diamond Directive File specifications were created by Microsoft, for their CAB format.

The DDF file is stored in a plain text format, and should not be modified unless necessary, therefore we do not recommend opening it manually by the user.

DDF files are not placed inside the resulting CAB file. They only describe the settings to compress the resulting CAB file.

Software to open and work with a DDF file

Microsoft Makecab

How Can I Open DDF File on Windows

We researched and learned that the best way to open DDF file is to find a DDF file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a DDF file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open DDF file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as DDF file opener then try to search online for "DDF viewer", "application to open DDF file" or "open DDF file" queries in the search engine you like.
Install the application you found and check if it can open DDF file

How Can I Open DDF File on Mac OS

We recommend to find a DDF file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a DDF file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with DDF file.
If you know the Mac OS application which can work as DDF file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open DDF file in it.
If you don't know the application which can open DDF file then try to search for "DDF viewer", "application to open DDF file" or "read DDF file" queries in the online search engine you like.
Install the application you found and check if it can read DDF file

How Can I Open DDF File on Android

If you downloaded a DDF file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded DDF file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "DDF".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "DDF viewer", "DDF file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open DDF File on iPhone or iPad

To open DDF File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the DDF file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "DDF". This way you can find apps which can open DDF files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "DDF viewer" or "DDF file" online in your favorite search engine.

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