Hi everyone As you know I have all my colonies with a plate number, therefore I end up with different lists of hive numbers plus certain data. It had always been a handfull job to compare those lists and end up with meaning full conclutions. The tipical questions were: Out of this list (says hives in yard A) which ones have gone to the mountain yard AA the season before? Or which one of these colonies graded above xx index when they were at the honey location? Well I had found the way to go in excel spreadsheet using the ISNA() and the MATCH() funtions. The best explanation here http://office.microsoft.com/en-us/excel-help/use-excel-to-compare-two-lists-of-data-HA001103915.aspx -- Juanse Barros J. APIZUR S.A. Carrera 695 Gorbea - CHILE +56-45-271693 08-3613310 http://apiaraucania.blogspot.com/ [log in to unmask] *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Guidelines for posting to BEE-L can be found at: http://honeybeeworld.com/bee-l/guidelines.htm