Sub mk()
Dim r As Range: Set r = Range("A1").CurrentRegion
Dim ar() As Variant: ar = Application.Transpose(r.Value)
For co = 1 To UBound(ar)
For ro = 2 To UBound(ar, 2)
ar(co, ro) = ar(co, 1) & ar(co, ro)
Next ro
Next co
r.Value = Application.Transpose(ar)
End Sub
Sub azov5()
Dim Ary As Variant
Dim r As Long, c As Long
Ary = Range("A1").CurrentRegion.Value2
For r = 2 To UBound(Ary)
For c = 1 To UBound(Ary, 2)
Ary(r, c) = Ary(1, c) & " " & Ary(r, c)
Next c
Next r
Range("A1").CurrentRegion.Value2 = Ary
End Sub
Sub mk()
Dim r As Range: Set r = Range("A1:BW" & Range("A" & Rows.Count).End(xlUp).Row)
Dim ar() As Variant: ar = Application.Transpose(r.Value)
For co = 1 To UBound(ar)
For ro = 2 To UBound(ar, 2)
ar(co, ro) = ar(co, 1) & ar(co, ro)
Next ro
Next co
r.Value = Application.Transpose(ar)
End Sub