This stems from the inappropriately tagged question Is it possible to put MS Excel graphs into a LaTeX document?
I have edited two tag wikis on Excel (excel) and Powerpoint ([powerpoint]), both of which of course are Office products. I think it would make sense to be consistent so if Word is called msword/ms-word then perhaps we need a change to ms-excel or ms-powerpoint as well. Or, vice versa. Powerpoint questions are not uncommon in association with Beamer questions and there seems to be a few on Excel when it comes to moving data from one to the other. I would be in favour of dropping the MS-Office tag since it is so general that I cannpt see how the entire MS-Office package (which includes much more than just Word/Excel/Powerpoint) would tie in with (La)TeX.