converting “index.html” into php files

i have a css and template using html, however, in order for it to be powered by wordpress i need to convert the html file into php file(s). is there any real easy way to do this? i’m just looking for a “guide” or step-by-step sort of walk through. this may be too technical or advanced but i thought i’d give it a shot. any help would be greatly appreciated.

p.s. obviously i’m a n00b so be gentle.