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SUMPRODUCT function - Microsoft Support
The SUMPRODUCT function returns the sum of the products of corresponding ranges or arrays.The default operation is multiplication, but addition, subtraction, and division are also possible. In this example, we'll use SUMPRODUCT to return the total sales for a given item and size:
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
Browsing history on the privacy dashboard - Microsoft Support
Why am I not seeing all my data on the privacy dashboard? To learn more about why you might not be seeing all of your data, see View your data on the privacy dashboard.. Legacy version of Microsoft Edge
在 Microsoft Edge 中管理 Cookie:查看、允许、阻止、删除和使用 - Microsoft 支持
如果你不希望第三方站点在你的电脑上存储 Cookie,则可以阻止 Cookie。 但是执行此操作可能会导致某些页面无法正确显示,或者可能会从站点收到一条消息,通知你需要允许 Cookie 才能查看该站点。
Applies To: Microsoft Edge
在 Windows 上下载并安装 Skype for Business - Microsoft 支持
下载和安装. 通常 Skype for Business 是随 Microsoft 365 一起安装的。 如果已安装 Microsoft 365,但未安装 Skype for Business 且需要安装它,请参阅:
Applies To: Skype for Business, Skype for Business Online
Protect yourself from phishing - Microsoft Support
First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...
Best practices for a large meeting in Microsoft Teams
First, based on the type of presentation that you want to create or that works best, you can either schedule a Teams meeting, a Teams webinar, or a Teams live event.Presenters should use the Teams desktop app for any type of presentation.
Applies To: Microsoft Teams
Use voice access to control your PC & author text with your voice
Learn how to use voice access for accessibility. This page includes accessibility help articles for people who use Windows voice access to control their PC and author text using their voice.
Office Help & Training
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订阅和计费 | Xbox Support
获取与管理你的 Xbox 订阅、帐单问题等有关的详细信息。
Learn about performance features in Microsoft Edge
Efficiency mode What is efficiency mode in Microsoft Edge? Efficiency mode is designed to help extend battery life. It minimizes power usage by reducing resource usage through modifying background tab activity and some foreground activity, as well as putting inactive background tabs to sleep after 30 minutes or less of inactivity (if Save resources with sleeping tabs is on).
Applies To: Microsoft Edge