Range GetRange(int r1, int c1, int r2, int c2)
{
string cell1 = ExcelSupport.GetCellSymbol(r1, c1);
string cell2 = ExcelSupport.GetCellSymbol(r2, c2);
return(_sheet.get_Range(cell1, cell2));
}
Range GetCell(int r, int c)
{
string cell = ExcelSupport.GetCellSymbol(r, c);
return(_sheet.get_Range(cell, cell));
}