A dgb file extension is related to the FlashCAD software. A dgb file contains drawing database.
DGB file extension - FlashCAD drawing database
What is dgb file? How to open dgb files?
File type specification:
The dgb file extension is associated with the FlashCAD.
The dgb file contains drawing database. FlashCAD is in Italian language.
Most likely some old format without support. No further information could be found.