How to add Matlab .m files into Latex

A. There is a guy who made 'mcode.sty' download it and use it. This website explains more:
http://my.opera.com/locksley90/blog/2008/02/25/how-to-include-matlab-source-code-in-a-latex-document

Q. How do you close all open graphs in Igor Pro?

A. There is no default way to do this, but a clever Japanese man (or woman, i don't know) came up with the following short trick to do the job (see above). The actual text is posted in the comment section for your copying ability.