Вставьте новый модуль кода в VBA и используйте следующий код ...
Option Explicit
Sub FormatConcatColumn()
Dim i&, rows&, LF, v1, v2, v3, vOut, r As Range
rows = 60 '<-- change to 200 or however many rows you need
ReDim vOut(1 To rows, 1 To 1)
ReDim LF(1 To rows, 1 To 2)
With [a1].Resize(rows)
v1 = .Value2
v2 = .Offset(, 3).Value2
v3 = .Offset(, 5).Value2
For i = 1 To rows
vOut(i, 1) = v1(i, 1) & vbLf & v2(i, 1) & vbLf & v3(i, 1)
LF(i, 1) = Len(v1(i, 1))
LF(i, 2) = LF(i, 1) + Len(v2(i, 1))
Next
With .Offset(, 8)
.Clear
.Value2 = vOut
.Font.Name = "Times New Roman"
i = 0
For Each r In .Cells
i = i + 1
r.Characters(1, LF(i, 1)).Font.FontStyle = "Bold"
r.Characters(LF(i, 1) + 1, LF(i, 2) - 2).Font.FontStyle = "Italic"
DoEvents
Next
End With
End With
End Sub