title: How to implement Excel vbA in C#
body: <p>Can you help me rewriting the following Excel VB code to C#?</p>
  
  <pre><code>Range("C9:E11").Select
  Selection.FormatConditions.Add Type:=xlCellValue, Operator:=xlEqual, _
      Formula1:="=1"
  Selection.FormatConditions(Selection.FormatConditions.Count).SetFirstPriority
  With Selection.FormatConditions(1).Interior
      .PatternColorIndex = xlAutomatic
      .Color = 255
      .TintAndShade = 0
  End With
  Selection.FormatConditions(1).StopIfTrue = False
  </code></pre>