Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi
The question you referred to was about locating the installer of Office 2011, and you said you were unable to install 2011 due to a lack of a DVD drive. However, I did notice that you indicated you have a new Mac and that it would likely have Catalina. Apple does not allow Office 2011 to run in Catalina. Office 2011 along with Office 2004, and 98 are no longer supported in Mac OS, which is by design by Apple.
Apple does not all ANY 32-bit applications to run in Catalina. That includes even the latest builds of common software up to the date Catalina was released. Things like Adobe Reader, Adobe Acrobat, etc all will not run in Catalina.
Unfortunately, Apple also does not allow regressing to old versions of Mac OS on new hardware, so you have to get 64-bit versions of any software you want to run.
You can continue to use Office 2011 on the hardware and operating system you had previously.