This option reads a suitably-formatted Excel file and loads metrics into the database.
There are three entries that may be made
A study
A measure type
A measure value
The program will check for entries already in the database, and list those in another temporary Excel file
The Excel file listing all actions will be displayed before a confirmation.
The approach allows for one single file that gets added to, rather than only listing entries to be added.
A subject will not be added.