LOWER (Primitive Spread Function) converts text to lowercase letters.

SYNTAX:

LOWER(value)

REMARKS:

The value argument is the text you want to convert to lowercase. The LOWER function does not change characters in value that are not letters.

The value argument can be a string, a formula that returns a string, or a reference to a cell containing a string. 

EXAMPLES:

LOWER("Road Race 2") equals road race 2