Roon Sehv: cant open setup file

I have downloaded the 847 MB Roon Sehv setup file but when I attempt to open it, I get a message asking me what program do I want to use to open the file? Im not sure what to do. I notice the setup file doesn't have a file extension, could that be the problem? any help appreciated...

Try adding the .exe on the end of it and see if it works.

Jenny that "did the trick" thanks for your help...seems like a great game

Have fun - it is a great game!

Glad it worked for you.
The same problem has happened with other games -- for some reason the ".exe" part of the file name gets removed, so you have to add it back to install the game.