NPOI支持excel2003和excel2007

 

 1  IWorkbook wk = null;
 2 if (filePath.ToLower() == ".xls")
 3 {
 4    wk = new HSSFWorkbook(fs);
 5 }
 6 else
 7 {
 8   wk = new XSSFWorkbook(fs);
 9 }
10                      

ps:对象HSSFWorkbook支持excel2003

　  对象HSSFWorkbook支持excel2007