Notes about the HES file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The HES file type is primarily associated with 'Hudson Entertainment'. HES stands for "Hudson Entertainment Sound". It's a chiptune format devised by Takashi Mamiya in 1999. HES files are basically PC Engine ROMs stripped out of everything but the audio code — they're similar to the Famicom's NSF.
Detailed information for file extension HES:
Primary association: Hudson EntertainmentIdentifying characters
Hex: 48 45 53 4D , ASCII: HESM
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.