Use following formulat in data validation: =COUNTIF($E:$E,$E1)=1 Please see attached for example.
Regards Alokeshwar 09891442001 _________________________________________________________________________________________________ "There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know." ________________________________ From: Abdul Rasheed <rashee...@gmail.com> To: Excel <excel-macros@googlegroups.com> Sent: Sun, 27 December, 2009 3:55:57 PM Subject: $$Excel-Macros$$ How to restrict duplication in Excel Can some body tell me that how can we avoid duplication of any Number or Alpha-numeric data in any column of excel file. Waiting for an early response. -- Regards, Abdul Rasheed Confidence never comes if we have all the answers, Be ready for all the questions... .Be bold to face the world.... -- ---------------------------------------------------------------------------------- Some important links for excel users: 1. Follow us in TWITTER for tips tricks and links : http://twitter.com/exceldailytip 2. Excel and VBA Tutorials(Video and Text), Free add-ins downloads at http://www.excelitems.com 3. Excel tutorials at http://www.excel-macros.blogspot.com 4. Learn VBA Macros at http://www.quickvba.blogspot.com 5. Excel Tips and Tricks at http://exceldailytip.blogspot.com To post to this group, send email to excel-macros@googlegroups.com If you find any spam message in the group, please send an email to: Ayush Jain @ jainayus...@gmail.com <><><><><><><><><><><><><><><><><><><><><><> HELP US GROW !! We reach over 6,500 subscribers worldwide and receive many nice notes about the learning and support from the group.Let friends and co-workers know they can subscribe to group at http://groups.google.com/group/excel-macros/subscribe The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/ -- ---------------------------------------------------------------------------------- Some important links for excel users: 1. Follow us in TWITTER for tips tricks and links : http://twitter.com/exceldailytip 2. Excel and VBA Tutorials(Video and Text), Free add-ins downloads at http://www.excelitems.com 3. Excel tutorials at http://www.excel-macros.blogspot.com 4. Learn VBA Macros at http://www.quickvba.blogspot.com 5. Excel Tips and Tricks at http://exceldailytip.blogspot.com To post to this group, send email to excel-macros@googlegroups.com If you find any spam message in the group, please send an email to: Ayush Jain @ jainayus...@gmail.com <><><><><><><><><><><><><><><><><><><><><><> HELP US GROW !! We reach over 6,500 subscribers worldwide and receive many nice notes about the learning and support from the group.Let friends and co-workers know they can subscribe to group at http://groups.google.com/group/excel-macros/subscribe
Book1.xls
Description: MS-Excel spreadsheet
