How do I sign into the Standard Metrics Add-in for Excel?

To sign into the Excel Plug-in:

Input an API key into your Excel plug-in via the task pane in excel. The task pane appears on the righthand side of the notebook and can be opened by clicking the "Show TaskPane" button on the right side of the home Ribbon in excel
Log-in with your API credentials

Note: You must have an API key to sign in. To create an API key, see this article: