How can you format cells to display numerical values as currency?

To format cells to display numerical values as currency, the most effective method is to select the cells, right-click, and choose "Format Cells," then select "Currency." This process ensures that the selected cells are properly recognized and displayed according to the currency format, which includes the appropriate currency symbol, decimal places, and number formatting that adheres to the conventions of currency presentation.

Using the "Format Cells" dialog allows for customization beyond just the currency symbol; you also have the ability to set the number of decimal places and include options for negative numbers, which is particularly important in financial reporting. Mastering this method improves the clarity and professionalism of your spreadsheets, making it straightforward for users to interpret the data accurately at a glance.