Taking tables out of frame

Writer 5.3.4.2 Windows 10.
I have a writer document with several tables inserted as floating frames. How do I extract the tables from the frames so that I can insert them as tables in a document - without the frames?

Click anywhere in the first cell (in the first row) and drag to anywhere in the last cell (in the last row): full table content is now selected. Copy and paste.

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Many thanks.