Instructors can easily download all student submissions for an assignment directly from the Blackboard Gradebook for offline review. The files will be packaged into a convenient ZIP folder, making it simple to review, print, or grade the work at your own pace.
1- Navigate to your Blackboard Ultra course.
2- Click Gradebook on the top menu.

3- Find the Assignment and Click on the name of it. Then click the Download image in the middle as the screenshot below.

4- Click download submissions.

5- Select All or Individual Students to Download.

5- Click Create Zip File and Send.

6- You will receive an email with the link to download the submissions. Click Download Now.