Cant import the datasmith plugin into sketchup

Hi… I downloaded the datasmith .msi file but when I open sketchup and start to export the file looking in the format drop down menu datasmith doesn’t show

In sketchup in the extensions manager panel there is a red button ’ instal extension ’ but the .msi file isnt even showing for me to instal it to sketchup.

Is this a mac / windows issue ? I am on mac… surely there is a way to get datsmith working on a mac so I can import sketchup models into unreal ?