High Sierra presents this when you try to download Microsoft Remote Desktop

Sometimes, the “Download” button does not work.

The method presented here is unofficial and Crouse cannot condone or support this, but presents this method as a baseline for your convenience

 

Download the previous version of the Microsoft Remote Desktop client

Move your file to /Applications folder

Right-click on the Zip file and Open With > Archive Utility

You should now see the Microsoft Remote Desktop program

Click it to launch. From there, please follow the appropriate instructions located here