18. The computer-readable storage medium of claim 16 , wherein the audio file is played by a low-vision user to identify the values associated with the range of cells.
18. The computer-readable storage medium of claim 16 , wherein the audio file is played by a low-vision user to identify the values associated with the range of cells. 19. The computer-readable storage medium of claim 18 , wherein the sound is played using a speaker on a mobile device.