So did your corporation decide to purchase extended support in case of security vulnerabilities? Office 2007 mainstream support ended in 2012. To me your company's continued use of 2007 seems more like an IT upgrade nightmare and they postponed doing it rather than a "it just works, why fix it" scenario. I know that is often the case at our IT department. Fortunately I have my own IT guys because our department is mostly Mac. Those Windows IT guys won't touch a Mac.