Github user LosD commented on the pull request:
https://github.com/apache/metamodel/pull/49#issuecomment-139151999
Okay, I'm officially giving up on this approach. I'm not sure, but the main
issue seems to be the mixing of write-only SXSSFWorkbook and read-write
XSSFWorkbook.
I suggest we unmix them, maybe with some kind of flag for output-only mode,
if that is even feasible. If not, I think we should just drop it, or see if
XSSF alone could work for big Excel sheets, while still giving us memory
benefits compared to the InputStream (though I doubt it).
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