Hi
You should use the vlookup function. All you need to do is put Vlookup
formulas in 822.xls for each of Facility----Time-----Day.

How to write Vlookup formulas... You can get many posts on this
topic...
Here is one:

http://groups.google.co.in/group/Exc...8a897b9278e048

Karthik Bhat