Determine if the document is DOC or DOCX in Java app without knowing its extension

Posted by Andriy on Stack Overflow See other posts from Stack Overflow or by Andriy
Published on 2010-06-11T14:21:58Z Indexed on 2010/06/11 14:22 UTC
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There is a constraint in the content management system that requires to store all word documents with specific extension (different from DOC or DOCX). However, when outputting the document to user we need to know if it is a DOC or DOCX file in order to provide the right MIME type.

So, is there a way to programatically find out if document is DOC or DOCX by its content?

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