"SOLVED:" Question on attachments

Hello,

I'm new on that forum, so excuse me if I have a basic question.
Is there a possibility to add an audio attachment ? The extensions listed don't show audio files (.wma, .mp3 and so forth). As far as I know .mid is not of that category.

If not, how should I proceed if I wish to send an short audio record for identification ?

Thank you in advance.