Karene,
I assume that since you have 95 workbooks the workbook names are a
combination of
dec01, dec02, jan03, feb02, mar03 etc and that each respective workbook has
a sheet called dec01, dec02, jan03, feb02, mar03 etc
If my assumption is correct you would need to code the macro to loop thru
all the files, open them, assign the named ranges, save the workbook, close
the workbook.
If there are any other files in the directory you are using that you dont
want to "update" you need to find a unique hook for the files you do want to
update such as the length of the filename.
If you let me know if my assumptions are correct and what the unique hook is
l will send you the code to automatically loop thru all the workbooks and
assign the named range. It wont be until later today as l will be in a
meeting for a few hours.
Regards
Michael