manticore-projects commented on PR #154:
URL: https://github.com/apache/poi/pull/154#issuecomment-2461002539

   > Commons-Compress added support for Zip64Mode.AlwaysWithCompatibility since 
this was added to POI. At least for the reporter on the lists.apache.org 
thread, using Zip64Mode.AlwaysWithCompatibility with the standard 
ZipArchiveOutputStream sorted their problem. 
   
   We found out that it does not solve it since at least EXCEL-2016 can't open 
those files (although LibeOffice will open those, with all the new checks 
passing.)
   
   
   > This bypasses the OpcZipArchiveOutputStream class that you wrote.
   
   This particular class seem to write "holes/unallocated blocks" as shown here 
https://bugs.documentfoundation.org/show_bug.cgi?id=163384#c5
   If this problem could be solved we would have the perfect solution.
   
   


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