Abstract: Methods and apparatuses for extensible stylesheet design using meta-tag information are disclosed. A designed stylesheet is for transferring content-oriented markup language files into a target file so as to support various presentations and information exchange. According to one aspect, a data processing mechanism starts with inserting meta-tag declarations in a target file wherein the meta-tag information pertains to information between dynamic objects in the target file and a source file. The target file with meta-tag information is then converted into one or more extensible stylesheets.