这个是给某人做项目的时候写的。

原本是C#的，我改写成VB.NET了，并且编译了一个dll。

--->>>>>>>><<<<<<<<---

测试通过，很好用

原文地址http://blog.csdn.net/jinjazz/archive/2008/08/01/2753869.aspx

调用方法：

Private Sub button1_Click_1(ByVal sender As Object, ByVal e As EventArgs)
    Dim excel As New ExcelWriter(&quot;e:\test.xls&quot;)
    excel.BeginWrite
    excel.WriteString(0, 0, &quot;1&quot;)
    excel.WriteString(0, 1, &quot;2&quot;)
    excel.WriteString(1, 0, &quot;3&quot;)
    excel.WriteNumber(1, 1, 4)
    excel.WriteNumber(2, 1, 5)
    excel.EndWrite
End Sub


这个，要写多维数组到xls就简单了吧 = = 直接循环 嗯

下面是代码

Public Class Exel_Writer
    Dim _r As System.IO.FileStream

    Public Function Init(ByVal strPath As String)
        _r = New System.IO.FileStream(strPath, System.IO.FileMode.OpenOrCreate)
        Return Nothing
    End Function

    Public Sub BeginWrite()
        Me._writeFile(New Short() {&H809, 8, 0, &H10, 0, 0})
    End Sub


    Private Function _writeFile(ByVal values As Short())
        Dim v As Short
        For Each v In values
            Dim b As Byte() = BitConverter.GetBytes(v)
            Me._r.Write(b, 0, b.Length)
        Next
        Return Nothing
    End Function

    Public Function EndWrite()
        Dim CS As Short() = New Short(2 - 1) {}
        CS(0) = 10
        Me._writeFile(CS)
        Me._r.Close()
        Return Nothing
    End Function

    Public Function WriteNumber(ByVal x As Short, ByVal y As Short, ByVal value As Double)
        Dim CS As Short() = New Short(5 - 1) {}
        CS(0) = &H203
        CS(1) = 14
        CS(2) = x
        CS(3) = y
        Me._writeFile(CS)
        Dim b As Byte() = BitConverter.GetBytes(value)
        Me._r.Write(b, 0, b.Length)
        Return Nothing
    End Function

    Public Function WriteString(ByVal x As Short, ByVal y As Short, ByVal value As String)
        Dim b As Byte() = System.Text.Encoding.Default.GetBytes(value)
        Dim CS As Short() = New Short(6 - 1) {}
        CS(0) = &H204
        CS(1) = CShort((b.Length + 8))
        CS(2) = x
        CS(3) = y
        CS(5) = CShort(b.Length)
        Me._writeFile(CS)
        Me._r.Write(b, 0, b.Length)
        Return Nothing
    End Function
End Class


附：原C#代码