I am aware that the maximum length of a single HSSF Workbook cell’s content is 32,676 characters. If I merge cells over 3 rows can I get a max length of 3*32676 or does it not work this way?
I am aware that the maximum length of a single HSSF Workbook cell’s content
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I don’t believe you’ll be able to do that.
HSSFpretty much implements what the underlying Excel 1997-2003 format supports. That said, in general, trying to merge two or more cells w/ data in them results in some truncation. The truncation is dependent on how the excel is viewed. So, to answer your question, you’ll not be able to retain ALL the data across the cells. You would either have data from the upper-left or the upper-right cell retained.