hi Rosariocristina,
Yes, it is possible.
To make this easier for me to explain, I'm going to assume your "bunc
of numbers" are listed down the page in column A & both columns B &
are empty. Also, please excuse my shorthand for keyboard combinations
I hope you can follow it.
*Create a list of numbers from 1 to 10000:
1) click in the white box in the top left of your screen that contain
the cell name (eg "A1", "B5" etc), type in B10000 and [enter].
2) Select all the cells in col B upto B10000, by pressing [ctrl + shif
+ uparrow].
3) type "=row()" (without the quotation marks), [ctrl + enter] (no
just enter, & this will fill all the selected cells).
*Visually identify which of these are in your data (in column A):
1)Select cell B1, [alt+o+d], change left box to "formula is", [tab]
type in "=COUNTIF($A:$A,$B1)>0" (without the quotation marks).
2) click format - patterns & choose a colour (eg green), [ok], [ok].
3) select cell B1, [ctrl+c],[ctrl+shift+downarrow], and [enter]
*Identify which of these are in your data (in column A) with words:
1) select cell C10000 by [ctrl + downarrow] and [rightarrow].
2) Select all the cells in col C upto C10000, by pressing [ctrl + shif
+ uparrow].
3) type "=if(COUNTIF($A:$A,$B10000)>0,"IN data list","NOT in dat
list")" (without the start & finish quotation marks), [ctrl + enter
(not just enter, & this will fill all the selected cells).
*Now you can quickly show all the numbers that are either in the lis
or not in the list by filtering column C.
1) [ctrl + home], [alt + d + f], click on the drop down box of colum
C & choose the option you want to see.
ps: please take off caps lock when writing any futur
questions/responses as it is harder to read.
hth
Rob Brockett
NZ
Always learning & the best way to learn is to experience..