Notes about the MXMF 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 MXMF file type is primarily associated with 'Mobile XMF File Format'. Mobile XMF is an open standard audio format which bundles a tiny Scalable-Polyphony MIDI (SP-MIDI) file, custom samples (Mobile DLS), and copyright information in one deliverable package. It is sometimes used in mobile phone ringtones.
Detailed information for file extension MXMF:
Primary association: Mobile XMF File Format
Mime type: audio/mobile-xmfIdentifying characters
Hex: 58 4D 46 5F , ASCII: XMF_
'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.