title: how to give range of a worksheet as variable
body: <p>I am having one excel sheet which is used to read the data through python openpyxl...so in my script i have values that are hard coded as ws['E2':'AB3'] as AB3 is the last entry to be read...but now the sheet is updated and now last cell coordinate is AR3...how can i make the code generic so that every time sheet updates the code should work..?
  Note(i find out total number of rows and column in sheet...what can i do)</p>
  
  <pre><code>rows = ws.max_row
  column = ws.max_column
  print(rows,column)
  column_letter = get_column_letter(column)
  print(column_letter)
  </code></pre>