Answer:
The answer to your question is to click on the button with the square on the window options ribbon.
In a file extension, it tells what type of file it is and tells what compiler to run the code.
Answer: Learn how to use the Insert panel in Dreamweaver to create and insert objects, such as tables, images, OAM files, and Bootstrap components. The Insert panel contains buttons for creating and inserting objects such as tables and images. The buttons are organized into categories.