.net - OleDB 异常：找不到可安装的 ISAM 异常，怎么了？

Question

我有以下代码：

Imports System.Data.OleDb

 Private Sub getData()
    Dim connStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\rawData.xlsx;Extended Properties=Excel 12.0 Xml;"
    Dim oleConn As New OleDbConnection(connStr)
    Dim query As String = "SELECT * FROM [Sheet1$]"
    Dim cmd As New OleDbCommand(query, oleConn)
    Dim reader As OleDbDataReader
    oleConn.Open()                                  ' Getting Exception Here !! 
    reader = cmd.ExecuteReader()
    Do While reader.Read()
        InputOutput.print(reader.GetString(0))      ' Prints the 1st column.
    Loop
    reader.Close()
    oleConn.Close()
End Sub

异常文本：找不到可安装的 ISAM。

我究竟做错了什么 ？

请帮忙，我是新手！

Answer 1

将我的连接字符串更改为：

Dim connStr As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\rawData.xlsx;Extended Properties=""Excel 12.0 XML;"""

它就像一个魅力..！

Answer 2

检查此代码，它工作正常。

cn.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;data source =D:\ODD_2015\Counselling.xlsx;extended properties=excel 12.0;"
cn.Open()