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[bug-57342] Excel compatible Zip64 implementation #154
I did an in depth analysis of this issue. Turns out the problem is not with the OOXML data generated by POI. The problem has to do with the ZIP format. Specifically with ZIP64 extension. That's why it's all OK up until sheet1.xml reaches over 4GB (uncompressed).
This pull request uses custom (Excel compatible) Zip64 implementation when Zip64Mode is set to Always.
thanks - merged with https://svn.apache.org/repos/asf/poi/trunk@1861196