title: Unwanted duplicate rows in pivot table in Excel
body: <p>I'm using pivot tables to structure my statistics.</p>
  
  <p>I have recently been making changes to the data set and then created a new pivot table. However, this time there are duplicates in the row labels. For example, there is a duplicate of "1". Before it was 12345678 as row labels, however, currently it is 112345678.</p>
  
  <p>Any idea of what my causing this? </p>
  
  <p>Thanks!</p>