It has been awhile since I have done it but if memory serves me correct go to File, Import/Export. You should be able to export as HTML and (I believe) two other formats.
Sorry - my fault - I obviously did not read your first post right - my fault. That is one of the things about Opera that irritates me. I used to use Opera for years but since coming to Mac I switched to Safari. If there is a way I have not found it.
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