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https://issues.apache.org/jira/browse/TIKA-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168902#comment-13168902
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Nick Burch commented on TIKA-812:
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If we put in a slightly higher priority match for WksSSWorkBook than Workbook,
that could solve the mimetypes issue
In the absence of multi hierarchy in the mimetypes file (we'd need "this is
what a user thinks this extends from" and "this is what it really extends
from") then I think this is a sensible approach
> Improve the detection of Works Spreadsheet 7.0 files
> ----------------------------------------------------
>
> Key: TIKA-812
> URL: https://issues.apache.org/jira/browse/TIKA-812
> Project: Tika
> Issue Type: Improvement
> Components: mime
> Affects Versions: 1.1
> Reporter: Antoni Mylka
> Attachments: testWORKSSpreadsheet7.0.xlr, tika-812.patch
>
>
> This was originally part of ver3 of my patch submitted to TIKA-806.
> Works Spreadsheet files are weird. Versions up to 3.0 used a Quattro Pro
> magic, version 4.0 used its own magic, while version 7.0 (probably later ones
> as well) use an OLE2 structure and an MS Office magic. The 7.0 files also
> contain an entry labelled "Workbook". In Tika this makes both MimeTypes (due
> to the quirk recently discussed in TIKA-806) and the POIFSContainerDetector
> label them as Excel.
> "Conceptually" they should be vnd.ms-works, but "technically" they are
> vnd.ms-excel. A special media type seems like a good compromise, similar in
> vein to the compromise we reached with TIKA-798.
> I would like to mark them with a new media type:
> "application/x-tika-msworks-spreadsheet". It would be a subclass of
> vnd.ms-excel so that:
> # With pure MimeTypes and no name, ms-excel could be returned.
> # With MimeTypes with name and data, the correct type could be returned
> # With POIFSContainerDetector the correct type could be returned
> # They can also be added to the list of types supported by ExcelParser as it
> seems to be able to get some content from them
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