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

Enter your password and select the arrow to continue. You’re now signed in to Skype.

You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves messages from that sender to the Junk Email folder.

Here are some answers to the frequently asked questions about the OneDrive desktop app for Windows.

Outdated software can cause problems with a Windows upgrade, so removing old or nonessential applications can help. If you plan to reinstall the application later, make sure you have the installation media and all required activation information before removing it.

Learn how to set up and configure Outlook so that you can begin to use it.

Use Outlook in the new Microsoft Edge. In Microsoft Edge, sign in to your Outlook on the web or Outlook.com account.

Get up-to-date information on how and where to access Microsoft Copilot for businesses and consumers.

Use the XLOOKUP function when you need to find things in a table or a range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID. With XLOOKUP, you can look in one column for a search term, and return a result from the same row in another column, regardless of which side the return column is on.

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.