10. An electronic device, comprising a memory for storing data files, and means for accessing information in a data file stored in the memory, including a computer system and computer program code means which, when loaded, makes the computer system execute the steps of: determining a file format for the data file; detecting an attempt to execute the data file in the electronic device; establishing that the electronic device holds no meta descriptor language file adapted to the file format; downloading the meta descriptor language file to a file memory in the electronic device from storage means through a data communication network; accessing the meta descriptor language file adapted to the file format of the data file; parsing the data file by means of a generic parser using said meta descriptor language file; extracting meta data from the data file; presenting information related to the data file from the extracted meta data.
10. An electronic device, comprising a memory for storing data files, and means for accessing information in a data file stored in the memory, including a computer system and computer program code means which, when loaded, makes the computer system execute the steps of: determining a file format for the data file; detecting an attempt to execute the data file in the electronic device; establishing that the electronic device holds no meta descriptor language file adapted to the file format; downloading the meta descriptor language file to a file memory in the electronic device from storage means through a data communication network; accessing the meta descriptor language file adapted to the file format of the data file; parsing the data file by means of a generic parser using said meta descriptor language file; extracting meta data from the data file; presenting information related to the data file from the extracted meta data. 15. The electronic device as recited in claim 10 , wherein the file format is a media data format, and the extracted meta data of that file includes information on different media pieces of said data file.