The FOI laws in the UK contain a reasonableness hurdle: http://ico.org.uk/for_organisations/freedom_of_information/guide/refusing_a_request You can't ask a

The FOI laws in the UK contain a reasonableness hurdle: http://ico.org.uk/for_organisations/freedom_of_information/guide/refusing_a_request You can't ask a state agency to do an unreasonable amount of work to generate the data you ask for & in the future I imagine that threshold will apply to the choice of data format just as it currently does to collecting the data itself.