Hello, I have a workbook that contained multiple named ranges that I have used for validation and dependent drop down lists. Everything was working fine until I saved in Excel 2010 (which removed this from compatability mode). Now for some reason, any of the named ranges that had a number in the name now shows up with and underscore at the beginning (MMA2 now looks like _MMA2) I have tried to edit the name with no luck. The prompt keeps telling me that the new name without the underscore is not valid. I have deleted the name range with undersore and tried to create a new one without the underscore, but I keep getting prompt that name is not valid. Really stuck on this one, any help would be gratly apreciated.