Files with FDD extension might also be found as part of some ZX Spectrum emulator.
There are 3 other file types using
the FDD file extension!
.fdd - Parallels virtual machine floppy disk drive image
.fdd - FlexiDATA database file
.fdd - FormDocs data file
What is fdd file? How to open fdd files?
The FDD file extension is also used by some ZX Spectrum emulators for one of the emulator formats.
Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)