This is on application/helpers/questionHelper.php:1315

Currently default is: png, gif, doc, odt, jpg, pdf

Seems to be a list of examples. I don't think we really want a catch all here. This setting should probably be customized for each instance of this question type.

Maybe just amend to: png, gif, docx, odt, jpg, pdf?

(Sorry for the second note. Made the first one based on an old version.)

If you want to add file types to a file upload question, you can use the advanced settings.

20160923.ls25fileupload.jpg (15,720 bytes)   

20160923.ls25fileupload.jpg (15,720 bytes)   

IMHO there is no default filetype set. Perhaps a global setting in the config file or a small dialog in global settings with a few sets to choose from.

() Default (png, gif, doc, odt, jpg, pdf) TBD
() Office (pdf,xls,xls, .... ) TBD
() Graphics (png,jpg,jpeg,gif,...) TBD
() ___ (<-- field to set your own filetypelist)

@c_schmitz, can we add these file types at LS 4?

My opinion : add a default_upload_filetype = 'jpg,jpe,jpeg,png,gif' only in config-default NO dox or docx … maybe pdf.
Can be updated in config, and in a new "QuestionObject" management when it come ;)

@DenisChenu, I was actually looking at config-defaults for such settings but they were missing. Adding the defaults there makes sense!

Yep … missing …