TEXTJOIN is a Text function in Excel that joins (or concatenates) text strings from two or more cells and separates the combined value using a delimiter.

You can combine text from multiple cells into one cell in Excel using the Ampersand symbol (&) or by using the CONCATENATE function.

Modern Excel functions like XLOOKUP, TEXTJOIN, and dynamic arrays offer faster, more versatile, and error-resistant alternatives to outdated tools such as VLOOKUP, CONCAT, and OFFSET.