[chirp_users] Kenwood TH-F7 not appare the upload in the menu !

I seem to understand that if I load a file -img image Then I can "upload" on the radio that appears in the menu.

But if I load an .cvs file .... nothing chirp gives me "upload" option in gray and I can't write on the radio, reason?

And why in chirp I don't see in any "menu" option to create an img image file, I also downloaded the latest version but I don't see how to create it?

There is a way to convert the file created by Chirp to CVS to an IMG file?

Or the problem is the Kenwood TH-F7 radio or ????

Thanks for help, 73