Josh Try =Dec2Hex(a,b) where a = the number to convert & b = the size of the output string ( I think). Also I think it only works with integers! - It may also depend on the version of Excell & what addins you have applied. Richard P Hi all. I have a list of numbers in an Excel file in decimal format. I would like to tranlate these numbers to hexadecimal format. Is there a way to do that using Excel? It would save me doing the calculations manually and reduce that source of error. Thanks, Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads