How to get from Row, Column to Excel A1 notation?

Column Numbers to Letters

Column Letters to Numbers

The good stuff is in the comments

http://support.microsoft.com/kb/833402 is a Microsoft solution for the problem of converting numbers to letters (the tricky part of the conversion from 1,1 to A1). This actually has the beuaty of working in other applications than Excel as it relies on basic VBA.

Then you add:

' Converts row and column index to Excel notation, ie (3, 2) to B3.
Private Function generateExcelNotation(row As Integer, column As Integer) As String
    ' error handling of your choice, I go for returning an empty string
    If (row < 1 Or column < 1) Then
        generateExcelNotation = ""
        Exit Function
    End If
    generateExcelNotation = ConvertToLetter(column) & row
End Function

Maybe this is what you are looking for?