What is a pfd file and how do I open a pfd file?
PFD files are Micrografx Optima! flowcharts that include various diagram elements that represent entities, information flows, and other business process modelling constructs. PFD files can still be opened by iGrafx Process, a successor to the Micrografx modeling software.
Relevant pfd file links:How to open pfd file on Youtube
How to open pfd file on Wikipedia
How to open pfd file on Microsoft.com