A method adapted to be implemented on a processor, comprising:
- selecting one or more target spreadsheets from among a plurality of spreadsheets contained in target information,
- the target information being described in a format of a markup language and containing the plurality of spreadsheets,
- each of the plurality of spreadsheets being individually identified based on tag information contained in the target information;
- generating transmission information, based on the one or more selected target spreadsheets,
- the transmission information comprises a copy of information of each individual spreadsheet of the one or more selected target spreadsheets;
- providing each piece of the generated transmission information with identification information common to each piece of the generated transmission information;
- transmitting the generated transmission information and the one or more pieces of document information each provided with the common identification information, to a conversion device;
- and
- receiving a single group of one or more pieces of image information from the conversion device,
- each of the one or more pieces of image information being generated through conversion by the conversion device based on a corresponding one of the one or more selected target spreadsheets included in the generated transmission information transmitted to the conversion device,
- wherein each of the one or more pieces of the image information corresponds to each individual spreadsheet of the one or more selected target spreadsheets with the common identification information.