Creating Your First HTML Document At the end of this tutorial, you will have made an HTML file that displays "Hello world" message in your web browser. Step 1: Creating the HTML file Step 2: Type some HTML code Step 3: Saving the file with .html extension Step 4:Right-click (Windows) or double-click (Mac) the file and select "Open with" from the action menu. View and save/Download a webpage's source code Right-click on the page you want to view the source for. Select View Source. - A window opens showing the source code.