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View, manage, and install add-ins for Excel, PowerPoint, and Word
When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 for Mac, Word 2021 for Mac, PowerPoint 2021 for Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 for Mac, Word 2019 for Mac, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, InfoPath 2013
Find your Windows product key - Microsoft Support
Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...
Applies To: Microsoft account dashboard
Edit your passwords in Microsoft Edge - Microsoft Support
Go to Settings and more > Settings > Profiles > Passwords . Next to the password you want to change, select More actions , and then select Edit. When prompted, authenticate yourself to the operating system to get access to the password information. After you successfully authenticate yourself, in the Edit password dialog, update your password ...
Surface Pro (第 5 世代) の仕様と機能 - Microsoft サポート
Surface Pro (第 5 世代) と Windows 10. Surface Pro (第 5 世代) には Windows 10 Pro エディションが搭載されています。 どの Surface モデルを使っているかわからない場合は、使用している Surface モデルに関するページをご覧ください。. Surface Pro (第 5 世代) の図
SUMPRODUCT 函数 - Microsoft 支持
此处的公式为:=SUMPRODUCT ( (B2:B9=B12) * (C2:C9=C12) *D2:D9) 。 它首先将 East 的出现次数乘以匹配的樱桃出现次数。 最后,它会对 Sales 列中相应行的值求和。 若要查看 Excel 如何计算此公式,请选择公式单元格,然后转到 公式 > 计算公式 > 计算。 需要更多帮助吗?
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Outlook データ ファイル (.pst および .ost) の概要 - Microsoft サポート
Outlook データ ファイル (.pst および .ost) の概要. Outlookにメール アカウントを追加すると、情報のローカル コピーがコンピューターに保存されます。. この機能を使用すると、インターネットに接続せずに、以前にダウンロードまたは同期したメール ...
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
SUMIF function - Microsoft Support
sum_range Optional.The actual cells to add, if you want to add cells other than those specified in the range argument. If the sum_range argument is omitted, Excel adds the cells that are specified in the range argument (the same cells to which the criteria is applied).. Sum_range should be the same size and shape as range.If it isn't, performance may suffer, and the formula will sum a range of ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
从“我的登录”查看工作或学校帐户登录活动 - Microsoft 支持
可以从“我的帐户”门户的 “我的登录 ”页查看所有最近的工作或学校帐户登录活动。. 通过复查登录历史记录来查看以下内容,有助于检查是否有异常活动:. 是否有人尝试破解你的密码。. 是否有攻击者成功登录你的帐户以及登录位置。. 攻击者尝试访问的 ...
KB2986423-修正:當資料列大小超過允許大小上限時,需要花很長的時間將新資料行新增至資料表
原因. 發生這個問題的原因是,當列的總大小接近允許的最大列大小時,SQL Server 會對資料表進行完整的掃描,以確保新增的欄不會違反資料完整性。. SQL Server 2012 之前的版本不會執行這項檢查,這會讓資料定義語言(DDL)執行得更快。. 不過,如果列大小超過 ...
Windows 键盘快捷方式 - Microsoft 支持
在打开的应用之间切换 :Alt + Tab. 打开"快速链接"菜单 :Windows徽标键 + X. 锁定电脑: Windows 徽标键 + L. 根据你的硬件,可以使用徽标Windows + PrtScn 进行屏幕截图, 或使用Fn + Windows徽标键 + 空格键 。. 查看所有Windows 11快捷方式. 订阅 RSS 源. 了解常见键盘Windows ...