The file VoidedContexts.csv To handle contexts that were included on the context registers but which were later deemed unnecessary, the value Void could be assigned in the field Type. This essentially removed the context from the stratigraphic model without deleting the reference to the paper context sheet. Where possible the reasons for the removal from the model are recorded in the field CtxtText. Values of other fields may therefore repeat depending on the data entry stage that had been reached prior to the voiding of the context number.