It sounds like you're using the Autofill handle to copy. Once you fil
the cells, try this:
When Excel fills the cells, a small button appears near the autofil
handle. Click on it, and it will give you several options. Choose th
"Copy Cells" button, and it will copy the data, instead of completin
the series.
Tip1:Right click on the fill handle and drag and it'll give you th
option right away to copy, fill series, or even just to fill th
formatting only.
Tip2: if you're wanting to fill a series or copy cells down an entir
column or row, double click the fill handle. It will complete th
column for you without having to drag it