I haven't been able to find a question that matches my situation. I have a .csv file that I made, and I loaded it into arc to join it to another layer. Due to another issue for another question, I have to add a field. Problem is the add field button is greyed out, and I'm not in an edit session.
I can't just add a new field into the .csv, there's another issue blocking me from doing that. Is there a reason why I can't add a new field?
I'm pretty new to using arc, and I haven't been able to find any answer to this online.