There are plenty of code samples on this forum for using Find/Replace in headers & footers, etc. (e.g.
https://www.msofficeforums.com/word-...html#post90012 https://www.msofficeforums.com/word-...s-footers.html) but it's not clear why you'd be needing that for a
template. Templates should ordinarily be fairly static affairs, meaning there's be little occasion for changing their header/footer content.