This month's monster security patch for Office breaks Excel when it tries to open HTML files, and it seems unlikely Microsoft will fix the problem Excel users are reporting an odd bug in the way ...

Free Web service Zamzar can turn Publisher files into Word documents, PDFs, HTML pages, and loads of other formats.

Bare Bones' TextWrangler is a very useful tool for Web developers, but lacks options for quickly previewing HTML code in your Web browser.