Font Changed After Backup

Hello Folks:

I am running Office 2010 and I only use it for very simple tasks like reorts and course sumittals so I am basically a real novice. Here's the problem: I recently reinstalled Office 2010 and when I loaded my files from my disks (they are backed up in three different places) all my headings and titles which had been written using the Open Classic font now show up as Wingdings and Open Classic is no longer listed in the fonts drop-down window. Is there any way I can regain this font or, failing that, is there any way I can change all the Wingdings to another font without having to retype them all?

Regards
Powell Lucas

Problem solved. I downloaded it from the web.