[Libreoffice-bugs] [Bug 82984] FILEOPEN: Error opening XLSX file in zip64 format

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=82984

--- Comment #11 from Krzysztof Rzymkowski <rzymek at gmail.com> ---
Looks like LibreOffice (Version: 6.0.7.3, Build ID: 1:6.0.7-0ubuntu0.18.04.2)
has a hard requirement on just the zip version field. But only in Central
directory's "version needed to extract" (see:
https://en.wikipedia.org/wiki/Zip_(file_format)#Central_directory_file_header).
Looks like this version needs to less of equal to 30. Other version fields can
be 45: Local file header's version and "version made by" in central directory. 

For a Excel and LibreOffice compatible zip64  compressor implementation see:
https://github.com/rzymek/opczip/blob/master/src/main/java/com/github/rzymek/opczip/Zip64Impl.java

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