You can type a question in the Search for a function box and click GO.
You can scroll through the alphabetical list of functions in the Select a function field.
You can select a function category in the Select a category drop-down list and review the corresponding function names in the Select a function field.
If you're comfortable with basic functions, you may want to try a more advanced one like VLOOKUP. You can check out our article on How to Use Excel's VLOOKUP Function for more information. If you want to learn even more about functions, check out our Excel Formulas tutorial.