Learn how to activate Office that is pre-installed on new Windows 10 PCs or using a new product key.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can …

Improve security, evaluate and mitigate the risks of running macros, and see how to enable or disable macros for Microsoft 365.

To begin using Python in Excel, select a cell and on the Formulas tab, select Insert Python. This tells Excel that you want to write a Python formula in the selected cell.

You can directly install add-ins from this page or select More Add-ins to explore. Select the add-in you wish to activate and right click to see option to activate. If you cannot find the add-in that …

AutoSave is available when a file is saved to Microsoft OneDrive or SharePoint in Microsoft 365, but you need to save or open the file from within Excel, PowerPoint or Word to switch it on.

Alternatively, if you have successfully installed Microsoft 365 or Office on your computer, but need help with activating or reactivating it, please go to: For Microsoft 365 - Activate Office. For …

When you open a file that has ActiveX controls, the yellow Message Bar appears with a shield icon and the Enable Content button. If you know the controls are from a reliable source, use …

The Analysis ToolPak is a Microsoft Office Excel add-in program that is available when you install Microsoft Office or Excel.

Copilot is available in the Home tab of Word, Excel, PowerPoint, and Outlook on the web if you are a Copilot subscriber. If you also have a Microsoft 365 subscription that includes the …