Hi Baba
don't sort A to Z in a column

- if you just select a column and use the
A to Z icon, excel will only sort that column.
IMHO the best way to sort data in excel is either select all your data not
just a column or select only one cell then use Data / Sort from the menu -
nominate the column to sort by and then your data should always stay
together.
Cheers
JulieD