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在 Excel Web 中,您可以將活頁簿設定為以唯讀模式開啟,但目前無法使用密碼加密活頁簿。 不過,您可以在 Excel 傳統型應用程式中加密活頁簿。

  • 若要開啟傳統型應用程式,請在功能區頂端選取 [編輯] > [在傳統型應用程式中開啟]

    開啟 Excel 傳統型應用程式螢幕快照

沒有 Excel 傳統型應用程式嗎? 試用或購買 Microsoft 365

  1. 移至 [檔案] 索引 標籤,然後選取 [密碼]

  2. [新增密碼以開啟 ] 和 [ 密碼] 以修改 並選取 [ 確定]。 

  3. 依要求重新輸入密碼,選取 [ 確定 ]

  4. 儲存檔案。 

如需詳細資訊,請參閱 在Mac中保護工作表

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