Diagram Designer

File Format
Name	Diagram Designer
Ontology	Electronic File Formats Diagramming and flowcharting Diagram Designer ; ; ;
Extension(s)	.ddd, .ddt
Released	2003

Diagram Designer is a flowchart and diagram editor for Windows. It was developed by Michael Vinther / MeeSoft.

It has a .ddd diagram format, and a .ddt "template palette" (library-like) format.

Identification

DDD files start with bytes (hex) 03 44 44 64.

DDT files start with 03 44 44 74.