The XMATCH function takes four arguments: lookup_value, lookup_array, match_mode, and search_mode. Lookup_value is the value to look for, and lookup_array is the range or array to search. Both arguments are required. The match_mode argument controls what kind of match is performed (exact, next smallest, next largest, or wildcard), see match_mode below for details. Finally, search_mode controls the search direction - whether XMATCH should start at the beginning of the array, at the end of the array, or if XMATCH should perform a binary search....