17. The method according to claim 16 , wherein the format of the file comprises one or more types selected from a group consisting of a text format, an image format, an audio format, a video format and an attachment format.
17. The method according to claim 16 , wherein the format of the file comprises one or more types selected from a group consisting of a text format, an image format, an audio format, a video format and an attachment format. 24. The method according to claim 17 , wherein the data structure describing a playing layout of MMS is a slide sequence structure.