Messages in Office Programs

[outpost-pcaton]

How can we disable messages like this one?  These type of messages have started appearing in all of the Office programs, PowerPoint, Excel, Word, etc.

We are running Version 1808, Build 10730.20348.

Thanks

[#2]

Here is an example from Excel:

[#3]

See this previous thread: https://techcommunity.microsoft.com/t5/Office-365/How-do-I-block-Microsoft-yellow-info-bar-ads/td-p/...