Which of the following commands helps to combine text values in Excel?

The command that effectively combines text values in Excel is the Concat() function. This function was designed to concatenate multiple strings into one single string, allowing you to efficiently combine text data from different cells or data sources.

Using Concat() is particularly useful in situations where you need to create a cohesive string from various elements, such as joining first names and last names into a full name, or merging addresses from different fields. This function can take multiple arguments, making it versatile for combining substantial amounts of text.

Other options such as Merge Cells is used for formatting the appearance of the cells rather than combining text values. Join() and Aggregate() are not functions available in Excel for the purpose of text concatenation; they serve different contexts and functionalities. Therefore, the choice of Concat() is accurate for combining text values in Excel, making it the right answer for this question.