Why is this downvoted? Many Wall Street fixed income trading desks were the same before 2010. What you wrote is true for many different types of businesses.

Why is this downvoted? Many Wall Street fixed income trading desks were the same before 2010. What you wrote is true for many different types of businesses. A huge amount of sales (customer management) tools are written in Excel/VBA. They work well. It is a great platform.