See "Home" tab, "Cells" panel, Insert, or R-click on the Row or Column
header, Insert. Also F1 or clicking the "?" in the upper right activates
Help.

Ken wrote:
Guest: Your 2007 Excel now has galleries instead of drop downs and when I
want to insert 10 rows or columns, I go to "INSERT" and there is no place
there to insert these, only charts, etc.