The downloaded courses have several files that my computer does not open. What can I do to open them? They are mmap, libzip, zip, rar, php, daa, psd, shockwave flash object, mm, and Jscript script files. These files are integral to the course and need to be opened.
The question is, do I have to open all these different types? Where do I get free software for these that is verified downloadable sources.