For each question defined in the exam, an object relating it to the group and question index it appeared at in this attempt.
Data for the row corresponding to this attempt in the full data table.
Data for the row corresponding to this attempt in the question totals-only data table.
Serialise this file to JSON to store in
Decrypt and parse this file's contents.
Forget about this file - remove it from the list of uploaded files.
Replace the underlying
file property with a new File object.