ocs pkp 2.3.6 validation
This validation works only with the submission process of authors' files.
At this moment you can upload only .doc and .docx files.
But if you want to extend the selection you can add addition file type and file name in PaperFileManager.inc.php (line: 480;481) file. P.S. file types you can find in here: http://filext.com/faq/office_mime_types.php For pdf files add in array's these sentences: $mime_type => application/pdf; $mime_name => pdf.
If you dont like upload warning, you can change it in author.xml (line: 91) file.
classes\file -> PaperFileManager.inc.php
locale\en_US -> author.xml
templates\author\submit -> suppFile.tpl
templates\author\submit -> step2.tpl