You can use Excel for free without downloading a heavy desktop application. The web version runs directly inside your browser. Step 1: Access Office Online Open your browser. Go to Office.com. Click . Use any free Outlook or Hotmail account. Step 2: Create a Desktop Shortcut Click the Excel icon on the left menu. Click the three dots in your browser corner. Select More tools or Apps . Click Install this site as an app . A shortcut will appear on your desktop. System Requirements for Excel on Windows 10