[Octave-bug-tracker] [bug #59273] [octave forge] (io) can't reliably load XLSX files in release 2.6.2

[Philip Nienhuis]

Update of bug #59273 (project octave):

                  Status:               Confirmed => In Progress            

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Follow-up Comment #9:

ATM most of this bug has been sorted out. Over in bug #59277 a related issue
was reported.

There are actually 2 interfering issues:
0 User selection of an interface is ignored the first time a spreadsheet is
opened after loading the io package;
0 Detection of POI OOXML support can be incomplete;
and a related, more subdued issue:
* Fiddling with interface support SW by a user (adding/removing jars to the
javaclasspath, unloading windows package) while the io package is loaded
*might not* always be adequately detected, let alone catched.
One may wonder *if* the latter should be detected & catched in the first place
(isn't that user responsibility?) but I did implement it to cut down on bug
reports (and bad Octave reputation). But it's usually hard to make such code
sufficiently robust, let alone avoid performance degradation.

All of these three issues have to be considered for a fix.

Hopefully tomorrow I'll come up with replacement functions that I hope you can
try for me.


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