Basic changes to a simple access database

This job is to make some basic changes to a simple access database. The requirement is to alter the table structure design of the database to simplify it. It is not a particularly long or complicated task. The database itself is not very big, holding approx 400 rows of data in a main table and then significantly less than this in several related tables. The database has been in use for approximately 5 years, and does not require any fundamental re-writing or complicated coding.