在C#里怎么判断调用<em>excel</em>的版本-excel .cells,excel v

Private Sub Command1_Click()
Dim xx As Boolean
xx = IsExistExcel
If xx = True Then
MsgBox "已安装来EXCEL"
Else
MsgBox "未安源装EXCEL"
End If
End Sub

'判断Excel是否安装的函数百，是则返回True，否则度返回False
Function IsExistExcel() As Boolean
On Error GoTo sERR:
Dim sExcel As Object
Set sExcel = CreateObject("EXCEL.Application")
IsExistExcel = True
Exit Function
sERR:
Err.Clear
IsExistExcel = False
End Function

excel.cells[i,j].Value.ToString()