A more thorough explanation:

The Exchequer Chamber was a court in England that served as an intermediate appeal court from the common-law courts, such as the Court of King's Bench, the Court of Common Pleas, and the Court of Exchequer. It was established in 1822 and was also known as Camera Scaccarii.

For example, if someone lost a case in the Court of King's Bench, they could appeal to the Exchequer Chamber to have the decision reviewed. The Exchequer Chamber would then decide whether the original decision was correct or not.

The Exchequer Chamber was an important part of the English legal system, as it provided a way for people to appeal decisions made in lower courts. This helped to ensure that justice was served and that the law was applied fairly.