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https://issues.apache.org/jira/browse/TIKA-3721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17526644#comment-17526644
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Dan Coldrick commented on TIKA-3721:
------------------------------------

[~tallison]  You're above my ability with this lol, POI is the Microsoft 
library to pull stuff out of docx, xlsx etc? Looks like these might be similar 
in the fact they are zipped but not 100% sure how this all works, can just see 
the patterns. 

In Peeveen's github he has loads of examples, V7 doesn't look to work the same 
as V8 (where v8 is a zip a bit like docx/xslx etc):

[https://github.com/peeveen/tika-dgn-detector/tree/master/src/test/resources/dgn/dgn8]

[https://github.com/peeveen/tika-dgn-detector/tree/master/src/test/resources/dgn/dgn7]

 

> DGN parser
> ----------
>
>                 Key: TIKA-3721
>                 URL: https://issues.apache.org/jira/browse/TIKA-3721
>             Project: Tika
>          Issue Type: New Feature
>          Components: parser
>    Affects Versions: 2.3.0
>            Reporter: Dan Coldrick
>            Priority: Minor
>         Attachments: image-2022-04-22-20-00-45-704.png, 
> image-2022-04-22-20-01-09-564.png, image-2022-04-22-20-02-24-180.png
>
>
> Does anyone have any experience with the DGN file format by MicroStation? I 
> see TIKA doesn't have a parser so would it be possible to create one? 
> https://docs.fileformat.com/cad/dgn/



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