Discover the benefits to co-authoring documents in your organization and learn about versioning, checkin/checkout, and mixed Office environments.

Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。

This article was written by the product team that created Microsoft Outlook for the best possible reason — our customers asked. Outlook is designed to be used by a wide audience with many work needs and styles.

Microsoft is dedicated in making Microsoft Edge the best browser for shopping with features like coupons, price comparison, price history, ratings, reviews, and more.

Use data validation rules to control the type of data or the values that users enter into a cell. One example of validation is a drop-down list (also called a drop-down box or drop-down menu). Watch more in this video.

Find app notifications from the taskbar in Windows 11, and in Windows 10, use quick actions to change settings quickly as well.

Lists all Excel functions by their category, such as Logical functions or Text functions.

Guide for troubleshooting print issues in Microsoft Edge. If Microsoft Edge still can't print after you try this step, go on to the next step.

Try it! Keep track of everyone you communicate with by creating and editing contacts in Outlook for Windows. Once you’ve saved someone as a contact, you can type the first few letters of their name into an email, and Outlook for Windows will fill in their email address for you.

Learn about the UNIQUE function, which returns a list of unique values in a list or range. UNIQUE is in a class of functions called dynamic arrays.