Users cannot open attached files in Blackboard, particularly when using Edge as the browser. Users may see a 404 error that says “File or directory not found.”
Try one of the following solutions:
If you are using Microsoft Edge as your browser, switch to Firefox, Chrome, or Safari.
Right click on the attached document and select “Save as” to download the document and open it later.
If you must use Edge, there is a workaround:
Open Edge settings
Set “Open Office files in the Browser” to Off
It is best if you install Office 365 on your device: https://pccc.atlassian.net/l/c/11Z0ynEr