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https://issues.apache.org/jira/browse/NIFI-2613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887280#comment-15887280
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ASF GitHub Bot commented on NIFI-2613:
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Github user jvwing commented on the issue:
https://github.com/apache/nifi/pull/929
Thanks, @jdye64, that got it. I was able to build just fine with
contrib-check and everything. On to new topics:
* **License/Notice** - We need a separate LICENSE and NOTICE files for
nifi-poi-nar. I was reminded by the recent LICENSE/NOTICE discussion on the
mailing list about what to include in NAR bundles, and it applies here. Good
news, you've already put together most of the text for the nifi-assembly
LICENSE/NOTICE, and there are many examples of the file layout in other NARs.
I think a reasonably comparable NAR referencing another Apache project is
[nifi-ignite-nar](https://github.com/apache/nifi/tree/master/nifi-nar-bundles/nifi-ignite-bundle/nifi-ignite-nar/src/main/resources/META-INF).
* **Sheet in Filename** - Output filenames all have the UNKNOWN sheet name,
like `35200238025098_UNKNOWN.csv`. How about adding a sheet name check to one
of the unit tests?
* **Error Cases** - What will make this fail?
> Support extracting content from Microsoft Excel (.xlxs) documents
> -----------------------------------------------------------------
>
> Key: NIFI-2613
> URL: https://issues.apache.org/jira/browse/NIFI-2613
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Extensions
> Reporter: Jeremy Dyer
> Assignee: Jeremy Dyer
>
> Microsoft Excel is a wildly popular application that businesses rely heavily
> on to store, visualize, and calculate data. Any single company most likely
> has thousands of Excel documents containing data that could be very valuable
> if ingested via NiFi and combined with other datasources. Apache POI is a
> popular 100% Java library for parsing several Microsoft document formats
> including Excel. Apache POI is extremely flexible and can do several things.
> This issue would focus solely on using Apache POI to parse an incoming .xlxs
> document and convert it to CSV. The processor should be capable of limiting
> which excel sheets. CSV seems like the natural choice for outputting each row
> since this feature is already available in Excel and feels very natural to
> most Excel sheet designs.
> This capability should most likely introduce a new "poi" module as I envision
> many more capabilities around parsing Microsoft documents could come from
> this base effort.
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