Export subtitles on their own

I tried the subtitling feature in Resolve 15 to make subtitles for my YouTube videos - since I find the on-line YouTube tool annoying and it is easier to do it in Resolve. It has work pretty well. I have already uploaded my finished file to YouTube, downloaded the automatically created title and loaded them to Resolve for exiting.
I cannot find a way to just export the subtitles - I have to export the whole clip with a subtitle sidecar just to get the file. This works and uploads to YouTube fine but takes time and creates a video file I do not need. I cannot see how to just export the subtitles after looking through the manual and Ripple Training videos. I assume you cannot just export the subtitles but have I missed something?
I cannot find a way to just export the subtitles - I have to export the whole clip with a subtitle sidecar just to get the file. This works and uploads to YouTube fine but takes time and creates a video file I do not need. I cannot see how to just export the subtitles after looking through the manual and Ripple Training videos. I assume you cannot just export the subtitles but have I missed something?