Where can you add help text in a worksheet?

Adding help text in a worksheet serves to provide users with guidance on how to use the workbook or clarify the data being presented. The worksheet properties dialog box is the designated place where you can effectively input help text, as it allows you to customize several aspects of the worksheet including help text for users. This feature can enhance user experience and ensure that individuals interacting with the worksheet have access to pertinent information.

On the other hand, while the formula bar is important for data entry and formulas, it does not provide a space to add help text. Column headers are primarily for labeling data and are not meant for comments or extended help information. Similarly, although charts are vital for visual data representation, the chart settings do not include a mechanism for directly inserting help text related to the broader worksheet content or functionalities. Therefore, the worksheet properties dialog box emerges as the most logical choice for adding help text.