vc访问excel， COleVariant covTrue((short)TRUE), covFalse((short)FALSE), covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR) _Application ExcelApp Workbooks wbsMyBooks _Workbook wbMyBook Worksheets wssMysheets _Worksh

简单的CBasicExcel类，读写excel 文件-class CBasicExcel,read or write a .xls file,environment vc2005