Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

A workbook is a file that contains one or more worksheets to help you organize data. You can create a new workbook from a blank workbook or a template. By default, a new workbook contains three worksheets, but you can change the number of worksheets that you want a new workbook to contain. You can also add and remove worksheets as needed.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

Learn how the service process for Microsoft Surface works and how to request service online if your Surface needs repair.

This article describes the formula syntax and usage of the TODAY function in Microsoft Excel.. Description. The TODAY function returns the serial number of the current date. The serial number is the date-time code used by Excel for date and time calculations.

Choose from thousands of royalty-free images, including stock images, icons, videos, and stickers that you can insert in your Office files.

Learn how to check your PC's storage capacity and manage it effectively with Microsoft Support's guidance.

Erfahren Sie, wie Sie Ihr Windows-Kennwort ändern oder zurücksetzen, wenn Sie es vergessen oder verloren haben.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

How to change your Outlook signature or add a signature. Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date.