Well for starters i would take a look at some tutorials and understand how HTML and CSS works.
Here are a few links
OR im sure you can google something.
Then create your background in photoshop - You can simply create a repeatable background in photoshop to duplicate this "excel table look"
Then really all you need to do is create a div, center it horizontally, and add your text in the appropriate place.
I mean, you really just need to know the basics of HTML and CSS to be able to get this site off the ground - but no one is going to create the site from scratch for you, generally this site is to help with problems for existing sites or sites in current development.