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https://issues.apache.org/jira/browse/TIKA-2025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15372818#comment-15372818
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Tim Allison commented on TIKA-2025:
-----------------------------------
Thank you for the ping. Are you able to view numbers with > 15 digits in Excel
when the value is a number? I can only see numbers with > 15 digits when the
cell is "Text".
For example, in my version of Excel, when I type a 17 digit integer, e.g.
12345678901234567, the value that is stored is: 12345678901234500. If I
prepend a ', to tell Excel to treat it as text, the value is correctly stored
as text: 12345678901234567.
The above is personal curiosity. We still need to fix this.
> Extraction of long sequences of digits from Excel spreadsheets using Tika
> 1.13 doesn’t yield the expected results
> -----------------------------------------------------------------------------------------------------------------
>
> Key: TIKA-2025
> URL: https://issues.apache.org/jira/browse/TIKA-2025
> Project: Tika
> Issue Type: Bug
> Components: parser
> Affects Versions: 1.13
> Reporter: Aeham Abushwashi
> Assignee: Tim Allison
> Attachments: Credit Card Numbers.xlsx
>
>
> If an Excel spreadsheet contains a long sequence of digits, such as a credit
> card number, Tika 1.13 will emit the said sequence in scientific notation.
> For example, the credit card number “340229177292566” is extracted from the
> attached spreadsheet as 3.40229E+14, which clearly is not the desired output.
> This works as expected in 1.12 and earlier. I suspect POI’s recent use of
> org.apache.poi.ss.usermodel.ExcelGeneralNumberFormat is to blame.
> I think the impact of this issue is significant. There’s plenty of
> information that can no longer be reliably extracted from spreadsheets. Think
> credit card numbers, telephone numbers and product identifiers to name a few.
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