[mkraft]

"macropod" wrote:

You might get better results if you split the table just below the header row before inserting the new column(s) and inserting them
into both of the tables thus created before rejoining them.

I did not find that this strategy worked at all. Splitting the data rows
from the header rows (thus creating two separate tables) allows column
insertions in the table to format acceptably (even those need some
'cleanup'), but in the table containing the header rows (i.e., even after
being separated from the table) everything ends up a mess (which has
consistently been my experience with Word tables). Not just a mess -- an
impossible mess. Trying to fix it takes longer than just recreating the
header rows. That shouldn't be necessary, however, in a supposedly advanced
word processing program.

It's incredible that after all these years Microsoft still can't get this
(tables) right.