1. You can use up to three levels of security and protection to control who can access and change your Excel data. Please describe two of the three levels and how you access each of them.
2. Name any five of the eleven types of charts and give a clear, specific, real live example of when this function could be used in a real-life situation.
3. Before using the formula auditing tools, you take the following three steps: fix obvious errors; use the Error Alert button; and examine the formula. Please briefly describe each of these steps.