Try this UDF (User Defined function). From workbook launch VBE using Alt+F11.
From menu Insert a Module and paste the below function.Close and get back to
workbook and try the below formula.

Syntax:
=CONCATRANGE(rngRange,strDelimiter,blnIgnoreBlank)
rngRange is the Range
strDelimiter Optional . Default is space
blnIgnoreBlank Optional. Default is False

Examples:
'1. Concatenate with default delimiter(space)
=CONCATRANGE(A1:A10)

'2. Concatenate with semicolon as delimiter and ignore blanks
=CONCATRANGE(A1:A10,":",1)

Function CONCATRANGE(rngRange As Range, _
Optional strDelimiter As String = " ", _
Optional blnIgnoreBlank As Boolean = False)
Dim varTemp As Range
For Each varTemp In rngRange
If blnIgnoreBlank Then
If Trim(varTemp) < vbNullString Then _
CONCATRANGE = CONCATRANGE & strDelimiter & varTemp
Else
CONCATRANGE = CONCATRANGE & strDelimiter & varTemp
End If
Next
CONCATRANGE = WorksheetFunction.Trim(Mid(CONCATRANGE, _
len(strDelimiter)+1))
End Function

--
Jacob (MVP - Excel)


"Leporello" wrote:

Does anyone have an elegant way of concatenating a series of cells? I think
the answer will be a user defined function which will be equivalent to
MULTICONCAT(start cell : end cell). I think it needs to be a function rather
than a macro, so that I can include it in formulae elsewhere in the workbook.
I can manage with the limitation of the contents of the cells of a single
row or a single column, but it would be nice to have something which was a
bit more versatile and could handle a two dimensional array or, best of all,
non-contiguous cells.