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The files are .ppt and .pdf files (not images).

Will it be possible to query these types of attachments and output it in a unordered list?

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I don't think it's documented in Codex but quick search in code shows that you can query by mime type. For jpeg images that would be something like:

$posts = get_posts( array(
            'post_type' => 'attachment',
            'post_status' => 'any',
            'post_mime_type' => 'image/jpeg',

             ) );

Not sure what types WP uses for files you need, don't have such in test stack to check.

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I didnt know that..thanks man – user3764 Jul 6 '11 at 4:13
do you think this can be done with multiple mime-types? PDF & PPT? OR can you just exclude a mime-type? – daniel Crabbe Jul 27 '11 at 8:11
@daniel Crabbe according to quick look at code it should take array or comma-separated list of multiple mime types just fine. – Rarst Jul 27 '11 at 8:55
indeed it does - thanks! – daniel Crabbe Jul 27 '11 at 9:13

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