Together with the latest Patchday Microsoft also released another wave of updates for Microsoft Office 2010 - 2016. Those none related security updates are downloadable right now.
26 none security related updates in total. Suprisingly Office 2007 (which is a end of life product) got security relevant updates for Word, Excel & Co. All relevant updates are summarized in my little chart here.
HKCU/Software/Microsoft/Office/16.0/Excel/Security was added in Office 2016 to control the Macro Security.
0 = Default, 1 = Strict Security, 2 = Mixed Security & 3 = Disabled.
You should already got the important updates over WUS if not check again and you should receive them right now.
A lot of cluster fuck in my opinion because we already got 16 updates in the first March patchday, since yesterday we got more updates and the confusion is once again complete. Normally no problem if you automatically update all product but some people might not do this for several reasons and there forced to real trough all the KB articles which can be frustrating.