You can refer to the contents of cells in another workbook by creating an external reference formula. An external reference (also called a link) is a reference to a cell or range on a worksheet in another Excel workbook, or a reference to a defined name in another workbook.

See instructions on how to add an account within Microsoft Teams (free) on your desktop and mobile devices.

To get someone's attention in a channel conversation or a chat, @mention them. Just type @ before their name and then select them from the menu that appears.

Find out how to change your Xbox gamertag through a browser, on your Xbox console, or your Windows device.

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.

Standard channels are available to all team members in Teams. Most channels are standard channels. If you need a smaller, specific audience for a particular subject, you can use a private channel.

如果我的设备上没有管理员权限，该怎么办？ 若要完全升级到新的 Microsoft Edge，必须使用管理员帐户登录到设备。

我的产品密钥不起作用. 如果 Office 产品密钥不起作用，或已停止工作，应与卖家联系，申请退款。 如果产品密钥是独立于软件购买的，则很可能是被盗的产品密钥，或者是以欺骗方式获得随后阻止使用的产品密钥。

The new Office Theme is on its way and will soon be available to all Office users. This new look specifies an updated standard color palette and type font that are applied throughout Microsoft Office.

Training: Learn how to create a spreadsheet, enter data, and create a chart in Excel.