This link is from the MATLAB Central (http://www.mathworks.com/matlabcentral/) exchange site. The video was created in response to a user who was trying to import MELTS output into MATLAB, via Excel. I'm posting it as it may be useful to other users here.
Video series: Reading Excel data into MATLAB with a GUI (http://blogs.mathworks.com/pick/2007/08/13/video-series-reading-excel-data-into-matlab-with-a-gui)
Thanks to the MELTS user mentioned above and the one who pointed out the video to me ;-)
Paula