https://tools.ietf.org/html/rfc4180
And csv export are a lot used for automatic system, update this broke all automatic system : this need a major release.

And more : it's easy to create a new export system named CSV with semiccolupmn or put it at global option.

https://github.com/LimeSurvey/LimeSurvey/commit/7b9155850f99ee4be1c0e6af05e2c6310956dc98#diff-6d49976c22fb302b307d24cd95e4aa11

I'd like to bump this as a significant issue. Excel is a pain but changing the LS's csv delimiter for excel's internationalization makes a worse problem. Maybe a solution is to have an optional parameter in export_responses_by_token() and export_responses() where the delimiter can be set, or some other wrapper function called export_responses_excel() where that can be set, or just set a property before the call.
I don't know how to manage it for manual exports - maybe they are less important as will be followed by manual imports where the delimiter can be manually set (in excel or whatever)

Bump

CSV does not use semicolons by default. This change breaks exports for many people.

At the very least it should be an option on the export results to use whatever separator you want

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=27862

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=27864

@dominikvitt : you missusage headCodeTextSeparator : https://github.com/LimeSurvey/LimeSurvey/blob/26d6a7732086a72b746e5796ff1731389ed13496/application/helpers/admin/export/FormattingOptions.php#L59 and https://github.com/LimeSurvey/LimeSurvey/blob/26d6a7732086a72b746e5796ff1731389ed13496/application/helpers/admin/export/Writer.php#L274

The only solution (with current core code) is to adding an new specific settings …

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=27865