Audacity Forum

I have just downloaded audacity 1.3.4 and am using to recored audio that I e-mail to an friend as an mp3...but I'm having to add the .mp3 to every file. I can't find a way to make the .mp3 appear every time I export. I have 1.2.6 to use as well and in that it does append the file. Any suggestions. I...