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From Yegor Kozlov <yegor.koz...@dinom.ru>
Subject Re: DO NOT REPLY [Bug 52949] How to extract VBA Macros code from Excel file by using POI?
Date Wed, 20 Jun 2012 07:08:35 GMT
Great! Can you create a patch in the "svn diff" format and upload it
in Bugzilla? You can re-open Bug 52949 or create a new one.

Basic contribution guidance can be found here:
http://poi.apache.org/guidelines.html

Yegor

On Tue, Jun 19, 2012 at 8:08 PM, Andrey Yesyev <andrey.yesyev@gmail.com> wrote:
> Yegor,
>
> I have implemented macro extraction from XLS and DOC files.
> Want to add it to XLSX and DOCX files.
>
> How can I contribute these changes?
>
> Regards,
> Andrey!
>
>
> On 28 April 2012 08:30, Nick Burch-11 [via Apache POI] <
> ml-node+s1045710n5672539h82@n5.nabble.com> wrote:
>
>> On Sat, 28 Apr 2012, Yegor Kozlov wrote:
>> > All I can suggest is to study the spec and write a decoder of VBA. I
>> > recall that macro code is compressed but it is not PKZIP but some other
>> > compression algorithm.
>>
>> I think it might well be a tweaked LZW. We already have two LZW
>> implementations handled in POI, as some formats use the flag bit one way,
>> some the other... See org.apache.poi.util.LZWDecompresser. You may need
>> some trial + error and/or looking at hex dumps with known text to work out
>> what the options used for VBA are.
>>
>> Nick
>>
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