Please bare with me, but I've never used the vlookup function and I'm having
difficulties.

I have two spread sheets with file numbers in column A. I need to know if
the files in spreadsheet two (smaller data set, named "RS2008") are within
spreadsheet one (larger data set, named '2008'). If so, I need a "1"
populated into spreadsheet one, column U (data in columns B-T).

Please help how I would accomplish this task.

Thank you!