Convert XLSB To XLSX Online for Free. Free Online XLSB To XLSX Converter. C++ XLSB To XLSX. XLSB To XLSX via C++....OTT XPS PNG BMP EMF GIF SVG TIFF JPG intrusive_ptr<Aspose::Cells::IWorkbook>...Cells for C++ DLL in your project. Other Supported Conversions...