Learn how to open a shared mailbox in Outlook. Shared mailboxes let a group of users view and send email, and share a calender, and open a contact list from a common mailbox.

Add or subtract days, months, or years from a date by using a formula or date functions in Excel.

Download information. The following files are available for download from the .NET Download site: Download the Microsoft .NET Framework 4.8 offline installer package now.

Provides information for avoiding and reporting Microsoft technical support scams.

Follow the steps in this article to help you cancel your Microsoft 365 subscription.

Copilot is available in the Home tab of Word, Excel (Preview), PowerPoint, and Outlook if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the Microsoft 365 desktop apps then you should find Copilot available in those apps as well.

You can open an Excel workbook and collaborate with others at the same time using co-authoring. This article will explain how.

Learn what you can do if you're not receiving account aign-in verification codes.

Learn how to get Outlook set up to work with Microsoft 365, POP, IMAP, or Microsoft Exchange-based email accounts.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.