I have 2 questions that I would like to see if they can be answered.

I have a worksheet that begins with an item #. An example of an item number
is 432-0980,432-1105. The first 3 digits designate where it belongs. Is
there a way that I can count these item numbers by just the first 3 digits?

My second question, how can I implement this counting of item numbers across
40 workbooks to one Summary Page?