"getvalue" function error "Sub or function not defined"
<p>I am not able to get the value using "getvalue" function in VBA.</p>

<pre><code>Sub testgetvalue1()
Dim p As String
Dim t As String
Dim s As String
Dim a As String
p = "D:\Archive Mail"
t = "Excel_1"
s = "Sheet1"
a = "A1"
msgbox getvalue(p, t, s, a)
End Sub
</code></pre>

<p>It throws an error</p>

<blockquote>
  <p>"Sub or function not defined"</p>
</blockquote>

<p>and it highlights the "getvalue" function.</p>