def sheetdata(wb_file, options)
      wb_file.locate("workbook/sheets/*").each do |x|
        @sheetbase[:name] = x[:name]
        @sheetbase[:sheetId] = x[:sheetId]
        @sheetbase[:relationId] = x[:"r:id"]

        relationshipfile=nil
        fname=nil
        unless Dir[@destination + '/xl/_rels'].empty?
          Find.find(@destination + '/xl/_rels') do |path|
            if File.basename(path).split(".").last=='rels'
              g=IO.read(path)
              relationshipfile=Ox::load(g)
            end
          end
        end
        relationshipfile.locate("Relationships/*").each do |rship|
          if rship[:Id] == x[:"r:id"]
            @sheetbase[:filename]=rship[:Target]
          end
        end


        @sheets << @sheetbase
        @sheetbase=Hash.new
      end
      sheetarr=@sheets.map{|i| i[:name]}
      sheet_collection(sheetarr, options)
    end
def sheetdata(wb_file, options)
      wb_file.locate("workbook/sheets/*").each do |x|
        @sheetbase[:name] = x[:name]
        @sheetbase[:sheetId] = x[:sheetId]
        @sheetbase[:relationId] = x[:"r:id"]

        relationshipfile=nil
        fname=nil
        unless Dir[@destination + '/xl/_rels'].empty?
          Find.find(@destination + '/xl/_rels') do |path|
            if File.basename(path).split(".").last=='rels'
              g=IO.read(path)
              relationshipfile=Ox::load(g)
            end
          end
        end
        relationshipfile.locate("Relationships/*").each do |rship|
          if rship[:Id] == x[:"r:id"]
            @sheetbase[:filename]=rship[:Target]
          end
        end


        @sheets << @sheetbase
        @sheetbase=Hash.new
      end
      sheetarr=@sheets.map{|i| i[:name]}
      sheet_collection(sheetarr, options)
    end
@private
 Given the data found in workbook.xml, create a hash and push it to the sheets
 array.

 The hash will not be pushed into the array if the sheet name is blacklisted
 (it appears in the *excluded_sheets* array) or does not appear in the list of
 included sheets.

 If *included_sheets* (the array of whitelisted sheets) is *nil*, the hash is added.