What does "set up a Choice data types to be a set of types" refer to?
You could import data from an excel file into SharePoint list, but you cannot import color formatting from an excel file into SharePoint list. You should do color formatting directly in the SharePoint list.
For people column, there is no OOTB way. You should use flow to import data from an excel file into SharePoint list.
Here is a post about how to step by step to create a flow for your reference:
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