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Gets a PivotField object that represents the PivotTable field that contains the upper-left corner of the specified range.
IPivotField PivotField { get; }
ReadOnly Property PivotField As IPivotField
IPivotValueCell valueCell = pivotTable.PivotValueCell(0, 0);
IPivotCell pivotCell = valueCell.PivotCell;
IPivotField field = pivotCell.PivotField;