Warning: Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3.The DATEDIF function may calculate incorrect results under certain scenarios. Please see the known issues section of this article for further details.

The new Microsoft Edge is based on Chromium and was released on January 15, 2020. It is compatible with all supported versions of Windows, and macOS. With speed, performance, best in class compatibility for websites and extensions, and built-in privacy and security features, it's the only browser you'll ever need.

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.

Here's how to get the Recycle Bin on your desktop: Select the Start button in the lower-left corner of the taskbar, then Settings.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Set your document's page numbering to start on the second page, and choose another starting page number.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language.

Create an alias to give you an additional email address which uses the same inbox, contact list, and account settings as your primary email address in Outlook.com.

Add or edit hyperlinks to web sites, local files, email messages, or anchor points in your document.