procedure SaveAs(const Filename: WideString; FileFormat: OleVariant; Password: OleVariant;
WriteResPassword: OleVariant; ReadOnlyRecommended: OleVariant;
CreateBackup: OleVariant; AddToMru: OleVariant; TextCodepage: OleVariant;
TextVisualLayout: OleVariant; Local: OleVariant); dispid 1925;
ExcelApplication.WorkBook.SaveAs(filename,FileFormat, Password, WriteResPassword, ReadOnlyRecommended,
CreateBackup, AccessMode, ConflictResolution, AddToMru, TextCodePage, TextVisualLayout ,Local)