How do I edit an HTML file in my course?
Canvas recently introduced a new page design called the New Canvas User Interface (UI). Depending on your Canvas view, your page design may vary from the images shown in this lesson. However, the functionality and location of the components remain the same.
To edit an HTML file in your course, you will need download your previously uploaded HTML file to your computer, edit and save your HTML file, and then upload your HTML file again.
Download HTML File
Click the line item for the file . Click the Download icon . Or click the Settings icon  and then click the Download link .