What did Canvas do to the file structure of my old uploaded files? Any files that I uploaded to Canvas that are over approximately 4 weeks old are now being blocked by Norton Safe Web! The only files that are able to be downloaded are the ones less than 4 weeks old. If I re-upload the same file to Canvas, I have no problem opening that file. My students are complaining that they can't open files from home. This is a big issue because I teach elementary Music and I have dozens of files for every grade level of my school. It would take an enormous amount of time to re-upload everything with no guarantee that the same issue wouldn't happen again!