URL Rewriting using Web Config in ASP.Net

I am trying to change my link http://mywebsite/downlods/myfile.zip'

to 'http://mywebsite/myfile.zip'

 below is my code in web config

<rewrite>
  <rules>
    <rule name="Rewrite Index">
      <match url="^downloads/(.+)$" />
      <action type="Redirect" url="{R:1}" />
    </rule>
  </rules>
</rewrite>

But I am unable to do so,

Please help me out