It's somewhat complicated to do for just one drop down list on one sheet.
So, you can expect it to be exponentially more difficult to do over 17
sheets. See this for a starting point:

http://contextures.com/xlDataVal03.html

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Biff
Microsoft Excel MVP


"Football Express" wrote in
message ...
In a 17 worksheet workbook I need to allow one of 32 possible dropdown
entries to be used but once. I have the custom validation box with the 32
entries in worksheet 1 but can not figure out how to eliminate the the
already used entry in worksheet 2, the used values in worksheets 1 and 2
to
not show up in the dropdown or worksheet 3, the used entries in worksheets
1,
2, and 3 not to show up in worksheet 4 and so on?
Any help appriciated.
PS: yup it's me again as football season draws near...
--
To those who have helped in the past and those about to help, Thank You.
There is an intregeing element to Excel that has captured me and that
stimulates my every remaining brain cell. Awesome