Notes about the OBK 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 OBK file type is primarily associated with 'Oxygen Phone Manager' by Oxygen Software. Oxygen Phone Manager II for Nokia phones provides a to connect your phone with your PC. The software supports more than 110 models and gives an access to the major functions of your phone.