Opening a .DMG file

Hi...I am running win10 pro 2004. I downloaded flightgear - 2020.1.1 .dmg for windows but am stuck opening it.
7 Zip unpacked it but I couldn't find an executable.
I would appreciated any help you can provide
thanks
 
I think you downloaded the wrong file -- DMG files are typically associated with Mac
 
Yes, YOU made the right choice, but the developer choose the wrong format for Windows -- sigh
 
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