Last Columns in Tables

Hi. I am using MS WORD XP. I have a file full of many
tables separated by paragraphs. The number of columns in
the tables varies. I want to do a search for something in
certain columns, and when the search finds a particular
thing (such as a specific word or number), select the
entire column and then extend the selection to the end of
the table, that is, the last column. Holding down the
Shift key only expands the selection to the next columnn
to the right. I want to extend the selection to all the
columns to the right of the selection (which vary in
number according to number of columns in the table). Can
this be done? Thanks.