And do you let excel guess at the range that should be filtered--or do you
select the entire range (header through bottom row--all columns), then apply the
filter.
And what version of excel are you using.
If I recall correctly, I _think_ I had similar problems with xl97 (or maybe
xl2k). I actually had to insert some dummy data into a row beneath the last
row, reapply the filter, and then clean up the data in that dummy row.
That dummy row got included in the autofilter range, so I always saw "Blank" as
an option in the dropdown list.
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It's been a long time, but I think I had this trouble when I did the filtering
via code--not manually--but I'm not sure about that.