Return a filtered range of data based on defined criteria

=FILTER (array, include, [if_empty])

Return the serial number of the current date and time

=NOW()

Return the rank of a number in a data set

=RANK(number,ref,[order])

Count how many values are in a list of arguments

COUNTA(value1, [value2], ...)

Return the value or reference of specified cell(s)

Array form: =INDEX(array, row_num, [column_num])

Reference form: =INDEX(reference, row_num, [column_num], [area_num])

Return a list of unique values in an array or range

=UNIQUE(array,[by_col],[exactly_once])

Extract characters from within a text string.

MID(text, start_num, num_chars), MIDB(text, start_num, num_bytes)

Lookup values in vertical or horizontal ranges

=XLOOKUP(lookup_value, lookup_array, return_array, [if_not_found], [match_mode], [search_mode])

Sum (add) values together.

=SUM(number1,number2,…)

Search one row or one column (or an array) for a value

(Vector form) =LOOKUP (lookup_value, lookup_vector, [result_vector])

(Array form) =LOOKUP(lookup_value, array)

Return the rank of a number in a data set

=RANK.AVG(number,ref,[order])

Returns a vertical array of the most common values in a data set.

=MODE.MULT(number1, [number2], ...)

Return the k-th smallest value in a range

SMALL(array, k)

Return the absolute value of a number

=ABS(number)

Return the k-th largest value in a range

LARGE(array, k)