9. A data file tangibly embodied on a computer-readable storage medium, comprising: a header portion containing an index portion; a first data type located near a terminus of the data file at a starting location referenced by the index portion, wherein the first data type is structured to be readable by a tool that ignores data in the data file after an end of file (EOF) marker in the data file, the first data type corresponding to compressed image data; and a second data type located between the header and the first data type, having the EOF marker at its terminus, wherein the second data type comprises a text file contextually associated with said first data type; and wherein the content of the data file are arranged to be compatible with Group-4 Tagged Image File Format (TIFF) specifications.
9. A data file tangibly embodied on a computer-readable storage medium, comprising: a header portion containing an index portion; a first data type located near a terminus of the data file at a starting location referenced by the index portion, wherein the first data type is structured to be readable by a tool that ignores data in the data file after an end of file (EOF) marker in the data file, the first data type corresponding to compressed image data; and a second data type located between the header and the first data type, having the EOF marker at its terminus, wherein the second data type comprises a text file contextually associated with said first data type; and wherein the content of the data file are arranged to be compatible with Group-4 Tagged Image File Format (TIFF) specifications. 11. The data file of claim 9 , wherein a format of the second data is a proprietary format.