|I can tell you how to enable macros, but it should be an educated choice.|
Click the Help icon (the question mark) and then enter/paste this into the search bar:
change macro security
The first link should explain your choices and the impacts of each.
Personally, I use the "Enable all macros (not recommended, potentially dangerous code can run)" setting as do most users who are comfortable with computers and understand the risks of using that setting. While Mother MS may want you to play it safe, as long as you don't go around opening files or running code from people you don't trust - in other words, use common sense - that setting should be fine.
For example, any file I download gets run through a virus checker. Any code I find on the web doesn't get run if I don't understand what it is going to do.
The choice is yours.
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