How to determine maximum field size?

Hello!
Here's my problem...
I have a rather large CSV file which I have loaded into Numbers, but now i need to work out what the maximum size of each field is.
There are far too many rows for me to just look through the CSV file (it's got a few hundred thousand lines in it), so i was hoping there was an easy way for Numbers to just tell me what the maximum size of each column is -- maybe some kind of formula that i can put at the end of each column.
just to be clear, i don't need the maximum value in each column, i need the maximum character length...
thanks for your help (and a happy new year!)

Craig,
That's an awful job for Numbers. Numbers 2 won't accommodate that many rows, and Numbers 3 I'm not sure about, but in any case it will be very slow. The general belief is that Numbers 3 is faster than Numbers 2, but in my experience it's like a race between a turtle and a slug. This would be a better job for a little BASIC routine, the sort of thing I can remember doing easily "back in the day", but which I wouldn't know where to begin now with the tools I know about in the Mac environment.
I think LibreOffice might handle it - no promises. The brute force way would be to have a second table the same size as the first and filled with the expression: =LEN(cellAddress), where cell address is a reference to A1 in the input table, and so forth. The expression =MAX(full range of length calculations table) should give you the largest entry length.
Jerry

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