What is the difference between hiding and deleting columns in Power Pivot? Hiding removes columns permanently, but deleting does not. Hiding prevents columns from being used in reports, but deleting removes them completely. There is no difference. Hiding is for calculated columns, but deleting is for measures.

Hiding columns in Power Pivot simply means they will not appear in the report view, making it easier for users to focus on the data they need without clutter. However, hidden columns still exist in the data model and can be re-displayed whenever needed. On the other hand, deleting a column means it’s completely removed from the data model. This can be irreversible, depending on your version of Power Pivot, so it's crucial to be sure you no longer need that data before hitting the delete button!