While searching for an answer to the question - How to open the DDF file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the DDF file. Each program contains a different type of data and you need specialized software to properly work with the DDF file. Here is a list of programs that are designed to work with the DDF file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.
| File type | Diamond Directive Format |
| Developer | Microsoft |
| Popularity | |
| Share |
If after installing the program from a list, you still cannot open a file with the DDF extension, the reason may be that the file is damaged. The solution may be to find a new copy of the DDF file you want to open
In this case, the easiest way is to use the tool built into the operating system for association of the DDF file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your DDF file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the DDF file using the program installed earlier.
Entries containing links of the DDF file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.
There may be a situation when a computer virus passes itself off as the DDF file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the DDF file mentioned. If the antivirus application detects malicious data, it may signify that the DDF file is infected.
| DDAP | DiskDoubler Compressed |
| DD | Doodle C64 Image Format |
| DDSX | Stronghold Kingdoms Data |
| DDB | Device Dependent Bitmap Graphics Format |
| DDK | IBM OS/2 Saved SKF |
| DDCX | DivX Descriptor 2 Format |
| DDT | Jill Of The Jungle Game Format |
| DDX | Alpha Five Data Dictionary Index |
| DDOC | DigiDoc Client Container |
| DDM | Alpha Five Table Objects |
