title: How to get the number of rows of a spreadsheet without considering the hidden cells in xlrd?
body: <pre><code>A B C
  1 1 1
  2 2 2
  3   3
      4
      5
  </code></pre>
  
  <p>Consider this as the sheet where column C is hidden. Hence if find the nrows using:</p>
  
  <pre><code>nrow = sheet.nrows
  </code></pre>
  
  <p>it gives nrows as 5.
  is there anyway to get the number of rows of the file by ignoring the hidden column.
  I tried slicing the column, col(colx) but still i am getting the length of that object as 5</p>