Option Base 1
Sub rei70()
Dim A As Variant
Dim B(100, 5) As String
'データが存在する領域を選択します
Selection.CurrentRegion.Select
'選択された範囲を取得します
Select_Range = ActiveWindow.RangeSelection.Address
A = Range(Select_Range).Value
For i = 1 To 25
B(i, 2) = "あ" & A(i, 2) & "あ"
'MsgBox B(i, 2)
Next
Range("H1:L10000") = A
End Sub