If you mean the ones in Additional Options, then all you need to do is select it from your file explorer
Note that the maximum file size is 512 KB, anything above won't work.
Only txt, jpg, gif, mpg, rec, avi, cs, mis, wav, ogg, png, log, bls, rtf extensions work
You can only have 4 in one post
(image files will be expanded when posted, any others (to my knowledge) will download them)
