Need Help Locating MySQL File to Upload into Microsoft Webmatrix

I attempted to follow the steps for creating a WordPress site for a Windows server by using this article.

When I downloaded WordPress through Microsoft Web Platform Installer, it did not automatically download Microsoft Webmatrix, so my database did not open in Webmatrix, as it says it will in Step 7.

Now I can’t find my MySQL database, and I can’t figure out how to configure my MySQL settings in Webmatrix in order to complete the final steps. Any ideas on how I can pull it into Webmatrix or at least get my WordPress running?

Thanks!