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GetFileExtension – The extension in a filename

' Return the extension of a file nameFunction GetFileExtension(ByVal FileName As String) As String    Dim i As Long    For i = Len(FileName) To 1 Step -1        Select Case Mid$(FileName, i, 1)            Case "."                GetFileExtension = Mid$(FileName, i + 1)                Exit For            Case ":", ""                Exit For        End Select    NextEnd Function

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