my mac is not supporting microsoft office after upgrade

As older office versions don't work on Catalina you have a few choices:

• Upgrade to Office 2019 or Microsoft 365 (not for free)
• download the free libreOffice for Mac: it works fine together with Office files https://www.libreoffice.org/discover/libreoffice/
• try Apple's Pages, Numbers and Keynote (if not already on your Mac you can download them for free at the App Store) and discover if they support your needs

To contact Microsoft refer to Contact a third-party vendor - Apple Support:

• Microsoft products: Visit the Microsoft website.

Microsoft will always want you to pay for their latest products. Fortunately there are many alternatives to them. Most of them are better and some of them are free.

I have same question as well. I have Office 365 Personal bought via App Store in Dec 2019. Latest Apple updates do not apply to Word or Excel included in this package. July 2020

Microsoft have indicated there will be no price increase in buying directly from them

Catalina doesn’t support 33-bit apps. You need Office 2019 or a Microsoft 365 subscription.

neuroanatomist wrote:

Catalina doesn’t support 33-bit apps. You need Office 2019 or a Microsoft 365 subscription.

Wow, your computers went to 33? Is that like going to 11?

Lol. But hey, what I wrote is factually correct!

You are correct, sir. Catalina does not support 33 bit apps.

You'll have to excuse Keith. He doesn't read "typo".

Go to the MS Office 365 with and look for updates there.

Hey, I will always use a chance to insert a Spinal Tap reference, no matter how low I have to go!