Hi,
 I created a simple document with Pivot Table in *.xlsx and *.xlsb format. It’s the same document converted from *.xlsx to *.xlsb by Excel, but Aspose.Cells returns different values for ‘PivotTableAutoFormatType’ field.
  *.xlsx
   PivotTableAutoFormatType = Table10
  *.xlsb
   PivotTableAutoFormatType = Classic
  Workbook wb = new Workbook(fName);
  foreach(Worksheet ws in wb.Worksheets)
  {
   foreach(PivotTable pt in ws.PivotTables)
   {
    try { pt.RefreshData(); }
    catch { }
    try { pt.CalculateData(); }
    catch { }
    try { pt.CalculateRange(); }
    catch { }
    // my inner printing method
    printLine(“AutoFormatType”, Enum.GetName(typeof(PivotTableAutoFormatType), pt.AutoFormatType), SPACE2);  
   }
  }
I use Excel 2010 and Aspose.Cells v7.3.5.1.
Thanks,
Alex Shloma