Adding a file using the Web app is a bit different from the iPad, but keeping your workflow on the Web app is just as easy as doing it on the iPad.
How to upload files from your computer
To start, go to any assignment and open Materials or any student.
Click the plus icon to begin adding a file
Your device's file browser will then open for you to search for your file
Find the file you’d like to upload and click Open to add the file to Showbie