Excel VBAでセルに関数が含まれている場合に背景色を変更するマクロ

Sub ColorFunctionCells()
    Dim ws As Worksheet
    Dim cell As Range
    Dim targetRange As Range
    
    ' アクティブなワークシートを選択
    Set ws = ThisWorkbook.ActiveSheet
    
    ' 色をつけたい範囲を指定（ここではA1:C10としている）
    Set targetRange = ws.Range("A1:C10")
    
    ' 範囲内の各セルを調べる
    For Each cell In targetRange
        ' セルが関数を含むか確認
        If cell.HasFormula Then
            ' 背景色を黄色（RGB値で指定）に設定
            cell.Interior.Color = RGB(255, 255, 0)
        End If
    Next cell
End Sub

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