Using XLSWriteMEX function in MATLAB

So I've downloaded a function called XLSWriteMEX off of the web but it comes in a format very foreign to me and I am not sure how to use it.

http://uk.mathworks.com/matlabcentral/fileexchange/4599-xlswritemex

This is the function. Could someone tell me how to use it please?

[Ingrid]

why don't you just use the http://uk.mathworks.com/matlabcentral/fileexchange/2855-xlswrite to which it refers if you are not familiar with mex-code?

[Louis Fillo]

I have used a few other MEX codes and in general they appear to be considerably faster. I would like to see how fast this one is comparatively.

[Harry]

XLSWriteMEX looks really useful- particularly because it can be used in a standalone app. Half ofthe comments on the functions page are people saying they're not sure how to install it. This highlights the value of Louis' question.