Tests multiple logical conditions at the same time.
Excel OR functions returns FALSE if the tested conditions are not met otherwise TRUE for conditions evaluated to be right.
=OR (logical1, [logical2], …)
logical1 – It is the first condition to evaluate.
[logical2] – The optional argument is the second condition to evaluate.
From 2007 onward Excel’s versions, you can add up to 255 [logical2] tests, however, in 2003 or previous versions, only 30 logical conditions can be tested.
Excel returns #VALUE! error if the supplied logical test is not interpreted as numeric and logical.