title: Formula for X & Y Co-ordinates to Latitude and Longitude?
body: <p>I have to convert X and Y coordinates into Latitude and Longitude using Excel Formula without Z coordinate. </p>
  
  <pre><code>X=6371*COS(C2)*COS(D2)
  Y=6371*COS(C2)*SIN(D2)
  C2( Lat), D2(long)
  </code></pre>
  
  <p>I have tried inverse of the above formula but unable to do that.</p>