Though I'll be using Word for this example, you can also make these changes in Excel using the same steps. For some, this difference in UI schemas may serve as an annoyance. Upon first launch, Microsoft Word and Excel on the Mac present a more palette-oriented user interface, with a 'toolbox palette,' when compared to their pre-ribbon Windows counterparts. This is part function: for example, Microsoft Excel on the Mac uses the 1904 date system, while its PC counterpart uses the 1900 system. Previously, I've mentioned that, despite their similar DNA and file interoperability, Microsoft Office for the PC and Mac are different in their own little subtle ways.