I have some data in one spreadsheet which needs to be updated from another
spreadsheet, just in two columns out of 6. How can I do that ?

For examle the top rows of Spreasheet1 are Name of Site, PV's, UU's,
category, audience. The other spreadsheet has just Name of Site,PV's, UU's. I
need to update Spreadhseet 1 with the data from Spreasheet 2, but still need
the ( category and audience data to stay). How can I do that ?
--
Thanks