Sub ReplaceWithExtractedData()
Dim secondSourceWorksheet As Worksheet
Dim lastRow As Long, lastColumn As Long
Dim currentCell As Range
Dim inputString As String
Dim startPos As Integer, endPos As Integer
Dim extractedData As String
Dim i As Long
' secondSourceWorksheet を設定
Set secondSourceWorksheet = ThisWorkbook.Worksheets("Sheet2") ' シート名を適切に変更してください
' 最終行および最終列を取得
lastRow = secondSourceWorksheet.Cells(Rows.Count, "A").End(xlUp).Row
lastColumn = secondSourceWorksheet.Cells(1, Columns.Count).End(xlToLeft).Column
' 最終列から数えて2列目にある各行の文字列を処理
For i = 1 To lastRow
Set currentCell = secondSourceWorksheet.Cells(i, lastColumn - 1)
inputString = currentCell.Value
' 開始位置と終了位置を検索
startPos = InStr(inputString, "(") + 1
endPos = InStr(inputString, ")") - 1
' 開始位置と終了位置の間のデータを抽出
If startPos > 1 And endPos >= startPos Then
extractedData = Mid(inputString, startPos, endPos - startPos + 1)
Else
extractedData = ""
End If
' 抽出したデータに現在のセルの値を置き換え
currentCell.Value = extractedData
Next i
End Sub