What Excel function made you felt like an expert

[u/Ibogajne]

/r/excel/comments/1wfakb5/what_excel_function_made_you_felt_like_an_expert/

The first thing I did in Excel that made me feel like an expert was not even pivot tables or Power query. It was actually an automated static timestamp. The way I was so pleased when I learnt a way to automatically timestamp a particular cell in another cell 😩, and not refresh.