hey guys please help me out.

I have a flat file that has start date in column a, and end date in column b
and data in columns c - h. I want to count the data in range c-h but only if
the start and end dates in column a and b are within a certain date parameter.

I have read differnt answers here using countif and also sumproduct but I'm
not sure what the argument should be or the syntax.

could you please help out?