# Installation
Download the executable file [here](🔗).
Please close Excel before installing the setup file.
Follow the setup instructions once the .exe file starts to run.
# Authentication
To use the add-in, you will need an API key, which comes with your [free Quandl account](🔗). If you already have a Quandl account, you can find your API key in your [account settings](🔗).
Click the **Quandl tab** from the Excel Ribbon. (This will reveal the Quandl add-in's functionality.)
Click **Get Data**.
Log in with a) your email and password or b) your API key.
NOTE:
You can also input your API key through the **Settings** button.