Using Backed-up Data

Greetings!

I recently updated my "old" HTML website into a Wordpress website. I love the entire process except for one thing; my archived data.

Specifically, the new site became alive a few weeks ago in late November. When we were in November, I had a post written for each day of December. Unfortunately for me, I wasn't able to carry those posts along with the revised website.

Do you have a plug-in (or suggestion) that would allow me to access my posts in a backed up XML, extract them, and place them into the new design?

I hope that makes sense. If not, please advise.

Thank you in advance,

Dave Manney
http://www.lselectric.com