How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.

Learn how to receive and interpret activity reports of your child's device use, including web browsing, apps and games usage, and screen time.

Learn how to filter the contacts in the People app on your Windows 10 PC so you can see all of your Skype contacts.

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With External Access for Teams, you can add or invite anyone outside of your Teams org who uses Teams, Teams for personal use, Skype (for consumers), and Skype for Business to a one-to-one chat.

How to use an Excel spreadsheet with mail merge in Word to create mailing lists for labels, envelopes, and documents.

Some of your form questions may require your responders to upload/attach files to their answers. You can add a type of question to your form that allows for file uploads.

Get started with news and interests, choose how weather looks on your taskbar, turn it on and off, personalize your feed and choose interests and followed publishers.

发布时间：2021 年 8 月. 本文适用于无法升级到Windows 11的用户，因为他们的电脑当前未启用 TPM 2.0，或者他们的电脑能够运行 TPM 2.0，但未设置为这样做。

Important: Reactions are only available to individuals using a work or school account in Outlook with a qualifying Microsoft 365 subscription.