Notes about the OND 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 OND file type is primarily associated with 'Notes' by IBM. This was a Lotus product. Lotus was bought out by IBM. Lotus Notes and Domino are a fundamental component of IBM Workplace. An OND file is actually a small Notes database with only one document in it (OND=One Note Database). To open it, save the attachment and open it with a Notes client to see the message. If it's encrypted, you must be the intended recipient.
Detailed information for file extension OND:
Primary association: Notes
File classification: DatabaseIdentifying characters
Hex: 1A , 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.