To learn about digital signatures (also known as digital ID), what they can be used for, and how to use them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel (desktop) In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Add a Signature Line in the Text group. In the ...

Find out how to submit a request for a refund for a purchase of digital Xbox content.

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Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows.

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Learn how to update or cancel a meeting or meeting series in Outlook for Mac. This article is intended for meeting organizers.

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Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

无论是通过 Xbox 主机设备或还是仅通过计算机提供，这些数字游戏购买退款条款涵盖 Microsoft Store 的数字游戏优惠、Xbox 应用（不含电影和电视应用）、数字游戏捆绑优惠以及数字耐用和消费性游戏优惠，例如游戏季票、虚拟货币和微交易等（总称“数字游戏产品”）。 有关数字游戏订阅、数字赠品 ...

Let's say that you want find out how long it takes for an employee to complete an assembly line operation or a fast food order to be processed at peak hours. There are several ways to calculate the difference between two times. Present the result in the standard time format There are two approaches that you can take to present the results in the standard time format (hours : minutes : seconds ...