Saving a blogtalkradio file in editing window

I have just uploaded a blogtalkradio MP3 file into the editing window. However, when I click file, I donot see the save as option. I am editing in Google Chrome.

export audio” , (in the “File” drop-down menu), is save in Audacity.

You won’t have the option to “export” audio as an mp3 format file unless you’ve installed something called LAME into Audacity.
[ WAV and FLAC formats are better quality than mp3 anyway ].