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Home/ Questions/Q 7091851
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Editorial Team
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Editorial Team
Asked: May 28, 20262026-05-28T08:14:22+00:00 2026-05-28T08:14:22+00:00

Because xlsx file may contain million rows, I decided to use poi event model,

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Because xlsx file may contain million rows, I decided to use poi event model, took example from here(ExampleEventUserModel), but found some problem parsing Date format cells.

For example I have in excel date 01.10.2011 in cell A15, but xml has:

<c r="A15" s="11"><v>40817</v></c>

It is not in date format, even not in millis for example.

How to parse date for event model?

Best regards.

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  1. Editorial Team
    Editorial Team
    2026-05-28T08:14:22+00:00Added an answer on May 28, 2026 at 8:14 am

    Excel stores dates as a floating point number of days (and fractions of day) from a fixed starting point. The value 40817 is the number of days from that starting point to 1 October 2011.

    POI’s HSSFCell has a getDateCellValue() method that returns a Java Date, and will do what you want.

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