Notes about the UMD 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 UMD file type is primarily associated with 'UMD Photobook'.
Detailed information for file extension UMD:
Primary association: UMD PhotobookIdentifying characters
Hex: 89 9B 9A DE 23 01 00 00 08 , ASCII: ....#
'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.