Final answer:
To ensure cells containing essential text or formulas are not changed in a worksheet, you should protect those cells. This action prevents accidental alterations and maintains the worksheet's integrity.
Step-by-step explanation:
When constructing a worksheet intended for novice users, it is important to protect the cells that should not be altered. These include cells containing text and formulas that are essential to the worksheet's functionality. By protecting these cells, you prevent accidental modifications which could lead to errors in the worksheet. The process typically involves selecting the cells you wish to protect, then accessing the protection features in the worksheet's settings to apply the security measure.
By implementing cell protection measures, you ensure the integrity of essential data and formulas, fostering a user-friendly environment that minimizes the risk of inadvertent changes, thereby maintaining the accuracy and reliability of the worksheet for users with varying levels of expertise.