Notes about the DDC file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The DDC file type is primarily associated with 'ddoc Print and Preview' by Don Dickinson. This file describes a print preview as generated from an application. These documents can be opened with DDOC.EXE, downloadable from the author's web site.