The new Excel Reader engine (dll edition) v3.0 with native xls-file parser is published and available for download.
Now you may read the formulas (XLSIsCellFormula, XLSGetCellFormula, XLSGetCellFormulaLength functions), ranges (XLSGetNamedRangeCount, XLSGetNamedRangeLength, XLSGetNamedRangeInfo functions), convert to text, html, xml, Excel xml and Lotus 1-2-3 formats
Also the sample projects are updated and some new are added (for C#, for example).