Hi there,
If you are not familiar with Purdue’s Online Writing Lab (O.W.L.), have a look around. I have a hunch if you poke around there you will find the info you need.
http://owl.english.purdue.edu/owl/section/2/11/
Another indispensable tool is a top-notch Word manual. My preference is The Missing Manual series to overcome pesky software obstacles.
Finally, a vigorous google search with a few likely terms might make sense, yes?: “mla format” “template” “Word” “mla format generator”, etc., etc., etc.