Export
From Audacity Manual
To hear your work in other media programs, export it to an audio file such as WAV or MP3 (some formats are unsupported). Saving an Audacity project creates a project file (and linked _data folder) containing all your edited tracks, so you can return to your work later. However, other programs can't read Audacity projects.
To export, click File > Export then choose the file format you want to export to in the "Save as type" dropdown. To burn a CD for standalone CD players, choose WAV or AIFF. To export as MP3, the Lame Encoder must be installed.
File > Export Selection exports only a selected area of audio. Use File > Export Multiple to export multiple files at the same time, either one for each audio track, or one for each labeled area in a single track. Tracks > Add Label At Selection lets you split the tracks from an album for multiple export as separate files.
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