Robert, You need to make a new column in H which concatenates all the others. e.g. in H3 you have: =A3 & B3 & C3 & D3 & E3 & F3 & G3 In I3 you need the usual COUNTIF formula to compare H3 against the length of column H. Filter I for values higher than 1 and there are your dupes. Ray -----Original Message----- From: mso-bounce@xxxxxxxxxxxxx [mailto:mso-bounce@xxxxxxxxxxxxx]On Behalf Of Robert Carneal Sent: 13 March 2005 21:29 To: mso@xxxxxxxxxxxxx Subject: [mso] Excel 200: Finding duplicates across rows and columns? I have several sheets ?almost- full that is in format: --------A----------------B----------C------------D--------------E--------- F-----------G----- ?surname, given?, birth date, location, marriage date, location, death date, location. As these are dates prior to 1900, the dates are in text This information goes down until Row 65515, and then continues on again starting with column H, and again starting with column ?O? and so on to column number IS (eye es). I am concerned about duplicates. Is there an easy way to find them? (There isn?t supposed to be any duplicates.) A duplicate in this case would be defined as a person whose name, birth date, birth location, marriage date, marriage location, death date, and death location is the exact same as another person. I can check for duplicates in the cell next to each other either up/down or left/right, but that still leaves the majority unchecked for duplication. Anyone know of a way to it against the rest of the sheet? <whew>. I hope I am clear with that question. Thanks for your thoughts. Robert -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.7.2 - Release Date: 11/03/2005 ************************************************************* You are receiving this mail because you subscribed to mso@xxxxxxxxxxxxx or MicrosoftOffice@xxxxxxxxxxxxxxxx To send mail to the group, simply address it to mso@xxxxxxxxxxxxx To Unsubscribe from this group, send an email to mso-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the subject line. Or, visit the group's homepage and use the dropdown menu. This will also allow you to change your email settings to digest or vacation (no mail). //www.freelists.org/webpage/mso To be able to use the files section for sharing files with the group, send a request to mso-moderators@xxxxxxxxxxxxx and you will be sent an invitation with instructions. Once you are a member of the files group, you can go here to upload/download files: http://www.smartgroups.com/vault/msofiles *************************************************************