A Microsoft Exchange account is a work or school email account. The organization that gave you the Exchange email account is running a Microsoft Exchange Server, or is using Microsoft 365 which uses Exchange Server to provide email.

Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.

Learn how you can manage cookies and site data you've temporarily allowed in Microsoft Edge.

To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.

Learn how to use Microsoft Edge for mobile devices, sync your browser data, and get answers to common questions.

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.

Linking to other workbooks is a very common task in Excel, but sometimes you might find yourself with a workbook that has links you can’t find even though Excel tells you they exist.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Learn how to pin an app to the taskbar from the Start menu or apps list by right-clicking and selecting the "Pin to taskbar" option.

Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.