How to save Playback at a slower speed [SOLVED]

Hello,

I’m new to using Audacity and have an mini cassette that has been recorded as an extended play time. When I play it into Audicity it is playing at standard spped and therefore plays back too fast. I was able to use the playback slider in Audicty to find the correct playback speed (0.54) but I don’t know how to save the file at the slower playback speed so the resulting .wav file plays correctly.

Use the “Change Speed” effect http://manual.audacityteam.org/o/man/change_speed.html

Thanks very much!