excel funny table syntax

Question

what does this do?

=TABLE(,B5)

there is a table on the chart where every cell has a different value but in the formula it has that syntax above. every cell in the table has =TABLE(,B5) in it.

Answer 1

Since it's not a valid builtin function, it must be a user-defined function.

Answer 2

TABLE() is used for scenarios via Data Tables.