[C++] class CXlRef
The CXlRef class is a thin data-less wrapper around the Excel SDK structure XLREF.
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 XLREF are usually obtained from XLOPER arguments to add-in functions (which may contain multiple XLREFs) and from the CXlOper::GetCaller() method.