In Excel, to control what a user can enter into a cell, limiting the ability to create data errors from manual entries, you can use the _________.

The Data Validation Tool in Excel is specifically designed to control user inputs by defining criteria that entries must meet. This feature allows you to set restrictions such as numerical limits, dropdown lists, date ranges, and even custom formulas, thereby preventing users from entering incorrect data that could lead to errors in calculations or data analysis. By implementing data validation, you help ensure the integrity and accuracy of your dataset, making it an essential tool for any spreadsheet user focused on maintaining clean and reliable data.

In contrast, while other options serve different purposes—like Conditional Formatting, which visually highlights data based on specified rules; Cell Protection, which secures cells from being edited but does not guide input; and Data Entry Forms, which facilitate data collection—all do not specifically address the need to limit or control the type of data entered into individual cells in the same precise manner as the Data Validation Tool.