Add .html to End of friendly URLs

Our current system still uses .html as an extension on the end of our urls.  We do have non html urls, but our current Google organic urls contain HTML.  We are currently working to switch our existing site over to nop commerce by JULY.  Very excited!! How tough will it be to add the .html extension to our friendly urls in Nop 2.8?

And again, I solved my issue.  I simply used the urlRewrite Mod, and then setup a rewrite rule for my non .html urls.