Notes about the D2 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 D2 file type is primarily associated with 'Diablo II' by Blizzard Entertainment. The Zonfire editor is supposed to be able to edit these files for V1.09D and V1.10. Back them up before attempting any edit.