What function would you use to join text strings with a specific delimiter?

The function used to join text strings with a specific delimiter is TEXTJOIN(). This function is particularly useful when you want to combine multiple text values from different ranges or cells and separate them with a specific character or string, known as the delimiter.

When using TEXTJOIN(), you specify the delimiter as the first argument, which allows for flexibility in how the resulting string looks. For example, if you wanted to join the names "Alice," "Bob," and "Charlie" with a comma and a space, you could use TEXTJOIN(", ", TRUE, A1:A3) if those names are in cells A1 to A3. The second argument allows you to choose whether to ignore empty cells or include them in the final result.

This makes TEXTJOIN() highly efficient as it can handle large amounts of data seamlessly, unlike CONCATENATE(), which can only join text strings without any delimiter. The other options listed do not exist in Excel or have different functionalities, further reinforcing TEXTJOIN() as the correct choice for this purpose.