I would store the the data as an integer and just convert to base26 for display purposes.

If you want I can send you a routin to do it, it's not difficult just a few lines of code.

Peter


>>Do you have a copy of Codebook? I'm pretty sure there's a Base36 function in there that could be adapted to what you want.
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>Yeah, I do. I have looked in the book, because I thought I remembered something like that, but I didn't find it. I also did a search of my codebook projects (using my nifty SearchString tool :-)) and came up with nothing. Do you remember what the function is called?
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>>Otherwise just take the rightmost char, use asc() to convert it to a number, increment it, if goes over "Z" set it to A and increment the next digit to the left.
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>I started laying out logic to do exactly this and it got pretty hairy. That's why I was looking for some other creatice solutions...
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>Thanks for your help.