[bhagerty]

Thanks to everyone for the suggestions. I didn't know that Calibre's database was in a SQL-compatible database called "metadata.db." Now I do.

So I opened "metadata.db" it in a SQL tool (I used Sqliteman Portable, but DB Browser for SQLite Portable would work too, I'm sure - both are at Portableapps.com) and exported the tag list in CSV format.

But this is a workaround, not exactly a solution. It seems to me it would be nice to have this capability in Calibre itself, rather than having to use a separate tool to open the Calibre database. Even though I basically know what I'm doing, I was worried that I might alter the Calibre metadata database inadvertently when I opened it in my SQL tool.

Thanks again for the advice!