How do I transcribe a pre-existing recorded zoom meeting?

Hi everybody,

   I have an educational account and recorded my first Zoom meeting yesterday.  I mistakenly thought that be recording it to the cloud it would also automatically transcribe the meeting.  As it turns out, that's not the case for my account anyways.  I've turned on audio transcription now.  However, I can't seem to find a way to transcribe my 1st recording.

1. Is it possible to have Zoom transcribe a recorded Zoom meeting?

2.  If so, how do I do it?

Due to the nature of the meeting, I don't want to arbitrarily upload the video to an outside vendor for transcription. (ie Grain).  

Thanks in advance!