Describes a single rectangular range of cells.
The CXlRef class is a thin wrapper around the Excel SDK structures XLREF4 and XLREF12.
It describes a single rectangular range of cells. It does not contain the name of the sheet in which the range is situated, or any other information.
Instances of CXlRef are usually obtained from reference arguments to add-in functions (which may contain multiple CXlRefs) and from the CXlOper::GetCaller() method.