Only the name was changed to protect the data. You will see a listing of student accounts. Select your own. Your work will be lost. Delete any files once you no longer need them.
Floppy disks are inherently undependable.
If you use a floppy disk, as a matter of safety, save your file on two different disks so you have one for backup. This will give you access to the floppy for saving. They are sorted into folders with the instructor's name. When you are finished with a lab computer, you must log off. If you don't log off, outsiders will have access to your account.