Say you wanted 1 to 20 to be your numbers.

In an out of the way column, say Z, enter into Z1:
=RAND()
And copy down to Z20.

You can now enter this formula anywhere you wish, and copy down for 20 rows:

=INDEX(ROW($A$1:$A$20),RANK(Z1,$Z$1:$Z$20))

If you don't want consecutive numbers, you can make your own list of
numbers, or letters or even words.
Just enter them in say ColumnY, from 1 to 20, and try this:

=INDEX($Y$1:$Y$20),RANK(Z1,$Z$1:$Z$20))
--
HTH,

RD

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"nonoi via OfficeKB.com" wrote in message
...
i want to do the random number for every each cell without repeat the same
number?do you know how to solve my problem?