Before our engineers add the latest version of Microsoft Office to the software compatibility, they also consider the stability based on the improvements that they add. I'm personally taking note of your request regarding Microsoft Excel.
For now, you can follow the advice of my colleague to check on the article for any changes and updates. I recommend bookmarking the support link to the article as well, In case you need them in the future (scroll down to Software compatibility):
Thanks for coming to the Community, I'll keep an eye out for your response regarding the Excel version. I'm always up to lend a hand.