Hi,
i think its possible for you to use the refresh button if you you data has
grown just make sure that the new data that you have included is with in the
range of range that you have assigned in creating your pivot table. lets say
for example, when you create the pivot table, you selected the range
"A1:A100". now if you are planning to add more data make sure that you will
insert those data with in the range "A1:A100" for example you will insert 2
new rows, you can insert it in between the "A1:A100" range so your new range
will be "A1:A102" but if you will insert the new 2 rows after A100, thats is
A101 and A102, when you hit the refresh button, it will not be added to your
pivot table because its out of range. but if you inserted it in between the
given range, when you hit the refresh button, it will be added your table coz
its within the range.
hope it can help you.
Thanks! ^_^