I have about 65 worksheets in a workbook that record an employees
time/activities. A particular code is given per activity per line. Times
are calculated automatically and codes are given by a Vlookup depending on
information that is unrelatd to this question. A sheet might read for
example:

8:30-9:30 60 min P
9:30-9:50 20 min S
9:50-11:00 70 min C
etc.

My question is I would like to know the ratio of activity on particular
codes throughout the day in increments of 5 or 10 minutes. So I would like
to see at 9:30-9:40 how many were on P, S, C, etc. Then from 9:40-9:50 etc.

I realize I would need to dedicate a new page in my workbook to dump all the
info from each individual sheet. I am just not sure how to extract data in
small increments when the original times recorded are in larger lumps of
time.

I hope this makes sense. Any help is appreciated!
-CRM