Notes about the XPTOC 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 XPTOC file type is primarily associated with 'XDIME Player' by Volantis Systems Ltd.. The Volantis XDIME Player is a Java-powered mobile client application that combines the on-device power of Java with the cost and time-to-market benefits of zero-programming device-optimized content markup. The .XPTOC file represents the table of contents for XDIME-Player resource bundles.
Detailed information for file extension XPTOC:
File classification: XML
Mime type: application/xml
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.