Check if your vlookup function looks like this, this will serve your purpose.
=VLOOKUP(A2,[Book2.xls]Sheet1!$A:$B,2,0)

here i am writing this function from Book1.xls and referring data from
Book2.xls where the data is in Sheet1

Regards,
James

"Kanmi" wrote:

I'm working on Excel file called Safetylight.xls then i want to call up
another workbook call book1.xls to automatic update safetylight.xls on some
rows. I mean whenever BOOK1.XLS change then safetylight.xls should pull
automatic update from it. I taught of using ='C:\My
Documents\excel\[book1.xls]Sheet1'!$A$1 OR VLOOKUP formula but i'm stuck.
please can you help me and advice on what to do. Please i will appreciate
urgent respond answer. Thanks alot.