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.

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.

Learn how to reactivate your account if your OneDrive has been blocked.

Organization news. News can come from many different sites. but there might be "official" or "authoritative" sites for organization news. News from these sites are distinguished by a color block on the title as a visual cue, and are interleaved throughout all news posts displayed for users on the SharePoint start page.

Learn how teamwork and communication happen in channels. A channel is a single place for a team to share messages, tools, and files in Microsoft Teams.

了解如何兑换礼品卡、代码或 Office 产品密钥，以及如何在 Microsoft Store 在线商店、Windows 或 Xbox 上花费余额。

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

如何使用 Excel 中的 COUNTIF 函数对满足所设置值的单元格数进行计数。

Learn more about the error messages you might receive when you try to upload files on the OneDrive website.

Are you looking for Contacts in the Mail app for Windows 10? The Mail app uses the People app for Windows 10 to store contact information. When you open a new message in Mail for Windows 10, start typing a contact's name or email address and Mail for Windows 10 will search the People app and display a list of suggestions for you to choose from.