If true, throw errors when features are not understood

When reading a file with VBA macros, expose CFB blob to vbaraw field When writing BIFF8/XLSB/XLSM, reseat vbaraw and export to file

When reading a file, store dates as type d (default is n) When writing XLSX/XLSM file, use native date (default uses date codes)

Create cell objects for stub cells

When reading a file, save style/theme info to the .s field When writing a file, export style/theme info

If defined and file is encrypted, use password