What method allows values to be spread equally across defined periods of time?

The method that allows values to be spread equally across defined periods of time is known as "Breakback evenly." This method is particularly useful in scenarios where there is a need to allocate a total amount across multiple periods uniformly, ensuring that each period receives an equal share of the total value.

When using this method, the total value entered is divided by the number of periods, facilitating a balanced distribution. This approach is beneficial in financial planning and forecasting where consistency across time frames is important for analysis and reporting.

In contrast, the other options serve different purposes. Breakback methods generally refer to alternative methods for distributing values that may not necessarily focus on equal spreading. Sheet display order refers to the arrangement of sheets within a workbook and does not impact how values are calculated or displayed. Read-only accounts are used for restricting modifications to data, which is unrelated to the distribution of values over time.