linking cells(should be an easy prob for excel users) help!

hi i have a problem here and i wonder if u guys can help

i have 3 columns with various data.
column 1 and 2 are able to shift up and down due to insertion of cells.
however i want to "stick" column 3 with the existing column 1&2 such that when they shifts, column 3 will stick and follow.

can anyone help?

Instead of inserting cells, insert rows. That will preserve the relationship between the columns.