@ Joshua gave you the answer. Another wider solution is the one I used before. See UDF copied here.
Option Explicit Function ConcatenateRow(rowRange As Range, joinString As String) As String Dim x As Variant, temp As String temp = "" For Each x In rowRange temp = temp & x & joinString Next ConcatenateRow = Left(temp, Len(temp) - Len(joinString)) End Function
Then, in your excel file, simply use this formula by selecting the range of cells to join and give it a line (in this case, β-β) to set between them.
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