Hi @Corner3 ,
I am not sure what the url you mentioned is specifically referring to. Could you provide more details?
As far as I know, there are two kinds of actions or feature that can be associated with the url of a file. Please use it as a reference:
The first is that the properties of the file contain Link to item, which can point directly to the corresponding file.

Another type of link you can use to create a link using Create sharing link for file or folder action.

In addition to import a url in a column of a list from excel list, you could consider using List rows present in a table action and Create item action to achieve the import work.
Hope it helps.
Best Regards,