ArcGIS Maps for Office - Selection Options Grayed Out / Not available

[GISTeam4]

While trying out ArcGIS Maps for Office (In Excel), I wanted to try and retrieve a data table from an online map into an Excel Worksheet. I've installed ArcGIS Maps for Office x86 5.0.2 and opened it in Excel (Office 365). Everything seemed to be working fine untill I used the Selection Tools. 

After I select some features on a map the options are grayed out like this:

I've checked the settings of the Web Maps and the Feature Layers and Export Data is on at least.

What else could it be?