Wich files are installed with wordpress in my host ?

Hi , i have some useless files in my host , these are from an old web page i did with another program.

so i want to delete all the files exept the ones that i need for my web to work with wordpress.

so all the images i need for my web are inside the wordpress/content/theme folder.

but i dont know if there are any that are outside thw wordpress folder that may be usefull for my web to work properly, like sitemap or style.css outside the wordpress folder, stats ?

is there aplace where i can see which files are stricly install with wordpress ?

so i can delete the ones i dont nee d?

thanx!
here’s a screenshot :

http://www.mediafire.com/imgbnc.php/266ef4d968ec515a7b4bb40817071cb46g.jpg