Created
July 21, 2015 18:30
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Python one-liner to convert spreadsheet column to zero-based index. e.g. 'A' -> 0, 'AA' -> 26, etc
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| col2num = lambda col: reduce(lambda x, y: x*26 + y, [ord(c.upper()) - ord('A') + 1 for c in col])-1 |
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