dat_files.each do |file|
      if File.exists?(file["filename"]) && File.size(file["filename"]) > 0
        case file["name"]
        when "echi_acds"
          EchiAcd.transaction do
            process_proper_table file
          end
        when "echi_agents"
          EchiAgent.transaction do
            process_proper_table file
          end
        when "echi_aux_reasons"
          EchiAuxReason.transaction do
            process_proper_table file
          end
        when "echi_cwcs"
          EchiCwc.transaction do
            process_proper_table file
          end
        when "echi_splits"
          EchiSplit.transaction do
            process_proper_table file
          end
        when "echi_trunk_groups"
          EchiTrunkGroup.transaction do
            process_proper_table file
          end
        when "echi_vdns"
          EchiVdn.transaction do
            process_proper_table file
          end
        when "echi_vectors"
          EchiVector.transaction do
            process_proper_table file
          end
        end
      else
        archive_file file, 0
      end
    end