The records cover both the Collegiate Church (1421 to 1846) and the Cathedral (1847 onwards), and are divided into two main parts.
The first are the so-called Capitular records, which are about how the Collegiate Church and Cathedral were governed and the decisions they made.
The Capitular records also include the legal records of land and property holdings by the Cathedral, including leases from which income was derived. There are records about the care of the fabric from 1756 onwards, Precentors' registers (including daily music settings) from 1863, service sheets and printed ephemera from 1832, and a photographic collection from around 1850 to the present day.