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[Octave-bug-tracker] [bug #59203] [octave forge] (io) Problem with xlsre


From: Philip Nienhuis
Subject: [Octave-bug-tracker] [bug #59203] [octave forge] (io) Problem with xlsread importing accent marks
Date: Thu, 1 Oct 2020 12:57:14 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #7, bug #59203 (project octave):

As to the windows package, your lat observations are helpful, thanks. I think
what happens is as follows:

Spreadsheet I/O in Octave happens with so-called "interfaces", which comprises
external software to do the actual I/O.
There is one built-in interface called "OCT" which is invoked if no other
interfaces are found on your system.
Now the windows package supplies an external interface called "COM" which
invokes Windows system libraries (ActiveX) to invoke MS-Excel itself.
If you don't specify an interface yourself, Octave will select one
automatically with a preference for external interfaces because those are
often better in some respects.
So, if you load the window package, Octave selects behind your back the COM
interface. If you don't load it, it selects OCT. At least on your system they
give different results.

I'll have a look. If it's a bug in the COM interface I hope I can fix it
before a new io release is due (next week I hope).


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