1 - A method of coding information representing several versions of a content, that comprises: a step of determining a structure comprising items of content and of a plurality of versions of the content associated with said structure, a step of associating, with each content item of said structure, each value of the content associated with said item, in a version of the content, to provide a piece of association information and a step of coding a single file comprising a piece of information representing said association, said structure and said values of the versions of the content that is associated with the content items.