Excel spreadsheets are extremely powerful in the right hands. We can design from scratch or modify existing. What is generally not known is how they can be useful for even very small businesses that believe they have no need of such things.
Don't try and understand them, just tell us what you want them to show. There are the obvious candidates like income and expenditure, but what about when to buy stock, what happens when and 'what if' scenarios can be safely examined.
Excel spreadsheets are not just for large corporations.