title: VBA get start date from week number of the year
body: <p>I would like to retrieve the date of the first day of a week (week starts on Monday) knowing the year and the number of the week. (52 weeks in 1 year)</p>
  
  <pre><code>Dim nYear As Integer, _
      nWeek, As Integer
      startDate As Date
  
      nYear = 2018
      nWeek= 1
  
  
  'startDate = ?
  </code></pre>
  
  <p>Expected result : <code>01/01/2018</code></p>
  
  <p>Is there a simple &amp; dynamic way to do so?</p>
  
  <p>Thank you</p>