Excel merging and automatic edit of worksheets
 

I am a teacher in a department of 3. We all keep records of the results our
individual classes achieve on identical Excel worksheets. I need to be able
to merge 6 individual "class" worksheets into one "yeargroup" worksheet for
analysis.
I need the master "yeargroup" worksheet to automatically update whenever new
data is entered into the individual "class" worksheets.
Is this possible
Any ideas
Thanks