[Qt-interest] How to open email attachment with new extension, new file type

[Manjeet Bothra]

Hi,
I have a program "myxyz" which opens the file which is input as first
command line argument and has a specific format.
For ex: "myxyz abc.xyz" will open and render the file abc.xyz.
Now when I open an email attachment which contains file abc.xyz I want my
program to launch it. How can I tell the email client to launch my program
when dealing with such types ?
currently when I open the attachment it says something like file type not
supported.
Kindly let me know.
thanks,
Manjeet
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