Found. Redirecting to https://services-eu1.arcgis.com/FH5XCsx8rYXqnjF5/arcgis/rest/services/Constituency_Boundaries_100m_OSi_National_Electoral_Boundaries_2017/FeatureServer/replicafilescache/Constituency_Boundaries_100m_OSi_National_Electoral_Boundaries_2017_-7966897488473773944.xlsx